| Flag of Abiko, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Abira, Hokkaido.svg | Mozillaman | Public domain |
| Flag of Aga, Niigata.svg | Mike Rohsopht | Public domain |
| Flag of Agematsu, Nagano.svg | Mike Rohsopht | Public domain |
| Flag of Agui, Aichi.svg | mti, Vectorization: Mozillaman | Public domain |
| Flag of Aibetsu, Hokkaido.svg | Nardog | Public domain |
| Flag of Ainan, Ehime.svg | SpinnerLaserzthe2nd | Public domain |
| Flag of Aizubange, Fukushima.svg | Original: Unknown author Vector: Strenatos | Public domain |
| Flag of Aizumisato, Fukushima.svg | Mike Rohsopht | Public domain |
| Flag of Aizuwakamatsu, Fukushima.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ajigasawa, Aomori.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Akishima, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Akita Prefecture.svg | Monaneko , Mike Rohsopht | Public domain |
| Flag of Akita, Akita.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Akiōta, Hiroshima.svg | Alex Tora | Public domain |
| Flag of Amagasaki, Hyogo.svg | Original: mti Vector: Ch1902 , Xeror | Public domain |
| Flag of Ami Ibaraki.svg | Mozillaman | Public domain |
| Flag of Anpachi, Gifu.svg | Mike Rohsopht | Public domain |
| Flag of Aomori Prefecture.svg | Monaneko | Public domain |
| Flag of Aomori, Aomori.svg | Alex Tora | Public domain |
| Flag of Aridagawa, Wakayama.svg | Xeror | Public domain |
| Flag of Arita, Saga.svg | vectorized by irodos | Public domain |
| Flag of Asagiri, Kumamoto.svg | Original author unknown Derivative version by ReneeWrites | Public domain |
| Flag of Asahikawa, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Asakawa Fukushima.svg | Fred the Oyster | Public domain |
| Flag of Ashikita, Kumamoto.svg | Unknown author Unknown author | Public domain |
| Flag of Ashiya, Fukuoka.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Ashoro, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Assabu, Hokkaido.svg | Unknown author Unknown author | Public domain |
| Flag of Atsuma, Hokkaido.svg | Unknown author Unknown author | Public domain |
| Flag of Ayagawa, Kagawa.svg | Own work | Public domain |
| Flag of Biei, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Biratori, Hokkaido.svg | original raster: Kzaral , Ch1902 | Public domain |
| Flag of Chatan Okinawa.svg | GTRus | Public domain |
| Flag of Chiba Prefecture.svg | Unknown | Public domain |
| Flag of Chiba, Chiba.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Chigasaki, Kanagawa.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Chikujō, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Chikushino, Fukuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Chikuzen, Fukuoka.svg | Unknown author Unknown author | Public domain |
| Flag of China, Kagoshima.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Chippubetsu, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Chiyoda Gunma.svg | Original: mti Vector: AnonMoos , Xeror | Public domain |
| Flag of Chofu, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Chonan, Chiba.svg | Mike Rohsopht | Public domain |
| Flag of Choshi, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Daisen, Tottori.svg | EnviousBird | Public domain |
| Flag of Daito, Osaka.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Ebetsu, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ebina, Kanagawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Echizen, Fukui (town).svg | Mike Rohsopht | Public domain |
| Flag of Ehime Prefecture.svg | en:User:Nameneko | Public domain |
| Flag of Eiheiji, Fukui.svg | Mike Rohsopht | Public domain |
| Flag of Erimo, Hokkaido.svg | Nardog | Public domain |
| Flag of Esashi, Hiyama, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Esashi, Sōya, Hokkaido.svg | Xeror | Public domain |
| Flag of Fuji, Shizuoka.svg | Original: Kzaral Vector: Ch1902 | Public domain |
| Flag of Fujimi, Nagano.svg | Mike Rohsopht | Public domain |
| Flag of Fujimi, Saitama.svg | Ле Лой , Xeror | Public domain |
| Flag of Fujimino, Saitama.svg | Xeror | Public domain |
| Flag of Fujinomiya, Shizuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Fujisato, Akita.svg | Xeror | Public domain |
| Flag of Fujisawa, Kanagawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Fukui Prefecture.svg | This logo image consists only of simple geometric shapes or text. It does not meet the th… | Public domain |
| Flag of Fukusaki Hyogo.svg | mti | Public domain |
| Flag of Fukushima Prefecture.svg | Monaneko | Public domain |
| Flag of Fukushima, Fukushima.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Fukuyama, Hiroshima.svg | Unknown author Unknown author | Public domain |
| Flag of Funabashi, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Funagata, Yamagata.svg | 舟形町 | Public domain |
| Flag of Furubira, Hokkaido.svg | Original: mti Vector: Nardog , Mike Rohsopht , Xeror | Public domain |
| Flag of Fuso, Aichi.svg | AichiWikiFixer | Public domain |
| Flag of Futaba, Fukushima.svg | Hariboneagle927 | Public domain |
| Flag of Gifu Prefecture.svg | Fvasconcellos ( talk · contribs ). PNG version by Kzaral | Public domain |
| Flag of Gifu, Gifu.svg | Original: Kzaral Vector: Ch1902 , Xeror | Public domain |
| Flag of Ginowan, Okinawa.svg | EEIM | Public domain |
| Flag of Gojome Akita.svg | Unknown author Unknown author | Public domain |
| Flag of Goka, Ibaraki.svg | Unknown | Public domain |
| Flag of Gokase, Miyazaki.svg | Original author unknown Vectorized by Wgn | Public domain |
| Flag of Gunma Prefecture.svg | Monaneko , Mike Rohsopht | Public domain |
| Flag of Gyokuto, Kumamoto.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Habikino, Osaka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Hachijo, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Hachinohe, Aomori.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Hachirogata Akita.svg | mti | Public domain |
| Flag of Hadano, Kanagawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Haebaru, Okinawa.svg | Unknown author Unknown author | Public domain |
| Flag of Haga, Tochigi.svg | SpinnerLaserzthe2nd | Public domain |
| Flag of Hakone, Kanagawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Hamamatsu, Shizuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Hamanaka, Hokkaido.svg | Nardog | Public domain |
| Flag of Hamatonbetsu, Hokkaido.svg | Fred the Oyster, Nardog | Public domain |
| Flag of Hanawa, Fukushima.svg | Mike Rohsopht | Public domain |
| Flag of Happo, Akita.svg | SpinnerLaserzthe2nd | Public domain |
| Flag of Hatoyama, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Hatsukaichi.svg | Original: Unknown Vector: Washiucho | Public domain |
| Flag of Hayakawa, Yamanashi.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Hidakagawa, Wakayama.svg | Xeror | Public domain |
| Flag of Higashiagatsuma, Gunma.svg | Mike Rohsopht | Public domain |
| Flag of Higashiizu, Shizuoka.svg | Mike Rohsopht | Public domain |
| Flag of Higashimiyoshi, Tokushima.svg | Unknown | Public domain |
| Flag of Higashimurayama, Tokyo.svg | Chubu Corporation, Nardog, Mike Rohsopht | Public domain |
| Flag of Higashiosaka, Osaka.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Higashisonogi, Nagasaki.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Higashiura, Aichi.svg | 愛知県東浦町 | Public domain |
| Flag of Hikone, Shiga.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Himeji, Hyogo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Hino, Tokyo.svg | 根川孝太郎, Nardog | Public domain |
| Flag of Hinokage, Miyazaki.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Hiraizumi, Iwate.svg | Original: mti Vector: Benno List , Xeror | Public domain |
| Flag of Hiranai, Aomori.svg | Xeror | Public domain |
| Flag of Hirogawa, Wakayama.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Hirono, Fukushima.svg | Mike Rohsopht | Public domain |
| Flag of Hirono, Iwate.svg | EnviousBird | Public domain |
| Flag of Hiroshima Prefecture.svg | Unknown | see file page |
| Flag of Hiroshima, Hiroshima.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Hisayama, Fukuoka.svg | Unknown author Unknown author | Public domain |
| Flag of Hitachinaka, Ibaraki.svg | SpinnerLaserzthe2nd | Public domain |
| Flag of Hodatsushimizu, Ishikawa.svg | Mike Rohsopht | Public domain |
| Flag of Hoki, Tottori.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Hokkaido Prefecture.svg | Monaneko | Public domain |
| Flag of Hokuei, Tottori.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Hokuryu, Hokkaido.svg | Wasabi215 ( talk ) | Public domain |
| Flag of Horokanai, Hokkaido.svg | Unknown author Unknown author | Public domain |
| Flag of Horonobe, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Hyogo Prefecture.svg | Guilherme Paula and Maanshen | Public domain |
| Flag of Ibigawa, Gifu.svg | Mike Rohsopht | Public domain |
| Flag of Ichikawa, Chiba.svg | Ch1902 | Public domain |
| Flag of Ichikawa, Hyogo.svg | Xeror | Public domain |
| Flag of Ichikawamisato, Yamanashi.svg | Mike Rohsopht | Public domain |
| Flag of Ichinohe, Iwate.svg | Original: Mti Vector: ヒッパソス | Public domain |
| Flag of Ichinoseki, Iwate.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ide, Kyoto.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Iide, Yamagata.svg | Unknown author Unknown author | Public domain |
| Flag of Iijima, Nagano.svg | Mike Rohsopht | Public domain |
| Flag of Iizuka, Fukuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ikaruga, Nara.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Ikeda Gifu.svg | Unknown | Public domain |
| Flag of Ikeda, Fukui.svg | ReneeWrites | CC BY 4.0 |
| Flag of Ikeda, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Ikeda, Nagano.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Ikeda, Osaka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ikoma, Nara.svg | Kzaral (original raster), Ch1902 , User:Wrightbus (SVG code) | Public domain |
| Flag of Imabari, Ehime.svg | vectorized by Los688,2014 | Public domain |
| Flag of Imabetsu Aomori.svg | Unknown author Unknown author | Public domain |
| Flag of Ina, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Inage, Chiba.svg | Original: Unknown author Vector: ReneeWrites | Public domain |
| Flag of Inazawa, Aichi.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ine, Kyoto.svg | Original author unknown Emblem vectorized by Wgn Derivative version made by ReneeWrites | Public domain |
| Flag of Iruma, Saitama.svg | Wasabi215 ( talk ) | Public domain |
| Flag of Ise, Mie.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Isehara, Kanagawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Isesaki, Gunma.svg | mti, Mike Rohsopht | Public domain |
| Flag of Ishikawa Fukushima.svg | Fred the Oyster , Mike Rohsopht | Public domain |
| Flag of Ishikawa Prefecture.svg | Kzaral | Public domain |
| Flag of Ishinomaki, Miyagi.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Itakura, Gunma.svg | 大字除川1178、中田きく | Public domain |
| Flag of Itayanagi Aomori.svg | Fred the Oyster | Public domain |
| Flag of Itoda, Fukuoka (no text).svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Itoshima Fukuoka.svg | mti | Public domain |
| Flag of Iwaizumi, Iwate.svg | Iwaizumi Town | Public domain |
| Flag of Iwami, Tottori.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Iwata Shizuoka.svg | mti | Public domain |
| Flag of Iwate Iwate.svg | Original: mti Vector: Blibla , Xeror | Public domain |
| Flag of Iwate Prefecture.svg | Original: Unknown author Vector: Monaneko , Zscout370, Mike Rohsopht | Public domain |
| Flag of Izumozaki, Niigata.svg | Mike Rohsopht | Public domain |
| Flag of Joetsu, Niigata.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kadena, Okinawa.svg | Mike Rohsopht | Public domain |
| Flag of Kadogawa, Miyazaki.svg | Ле Лой | Public domain |
| Flag of Kadoma, Osaka.svg | originally uploaded by Mti (see source) Redrawn (vector graphic) by Origami-Kranich , Mik… | Public domain |
| Flag of Kagamiishi, Fukushima.svg | Original author unknown Vectorized by Mliu92 | Public domain |
| Flag of Kagoshima, Kagoshima.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kahoku, Yamagata.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Kaisei, Kanagawa.svg | Mike Rohsopht | Public domain |
| Flag of Kaiyo, Tokushima.svg | mti | Public domain |
| Flag of Kakogawa, Hyogo.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Kamagaya, Chiba.svg | Xeror , Mike Rohsopht | Public domain |
| Flag of Kami, Hyogo.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kami, Miyagi.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Kamifurano, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kamigori, Hyogo.svg | Mike Rohsopht | Public domain |
| Flag of Kamiichi, Toyama.svg | Mike Rohsopht | Public domain |
| Flag of Kamiita, Tokushima.svg | Xeror | Public domain |
| Flag of Kamijima, Ehime.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Kamikatsu, Tokushima.svg | Original: Unknown Vector: Vezixig and ReneeWrites | Public domain |
| Flag of Kamikawa, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kamikawa, Hyogo.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kamikawa, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Kaminokuni, Hokkaido.svg | Wasabi215, Nardog | Public domain |
| Flag of Kamisato, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Kamishihoro, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kamisunagawa, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kamiyama, Tokushima.svg | Mti | Public domain |
| Flag of Kanagawa Prefecture.svg | Monaneko , Mike Rohsopht | Public domain |
| Flag of Kanan, Osaka.svg | Mike Rohsopht | Public domain |
| Flag of Kanazawa, Ishikawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kanda Fukuoka.svg | Unknown author Unknown author | Public domain |
| Flag of Kanegasaki, Iwate.svg | Original: mti Vector: Life of Riley , Xeror | Public domain |
| Flag of Kaneyama, Fukushima.svg | Mike Rohsopht | Public domain |
| Flag of Kaneyama, Yamagata.svg | mti | Public domain |
| Flag of Kani, Gifu.svg | Ch1902 | Public domain |
| Flag of Kanie, Aichi.svg | Life of Riley | Public domain |
| Flag of Kanmaki, Nara.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Kanna Gunma.svg | Fred the Oyster | Public domain |
| Flag of Kanra Gunma.svg | Fred the Oyster | Public domain |
| Flag of Kariya, Aichi.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Karuizawa, Nagano.svg | Original: Kzaral Vector: Ch1902 , Xeror | Public domain |
| Flag of Kasagi, Kyoto.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Kasamatsu, Gifu.svg | Mike Rohsopht | Public domain |
| Flag of Kashihara, Nara.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kashima, Kumamoto.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kashiwa, Chiba.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Kasugai, Aichi.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Kasukabe, Saitama.svg | Syed , based on PNG version originally created by Kzaral . Optimized by Xeror . | Public domain |
| Flag of Kasuya, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Katsuura, Tokushima.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kawachi, Ibaraki.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Kawagoe Mie.svg | ヒッパソス | Public domain |
| Flag of Kawagoe, Saitama.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kawai Nara.svg | ヒッパソス | Public domain |
| Flag of Kawamoto, Shimane.svg | Mliu92 , Xeror | Public domain |
| Flag of Kawanishi, Hyogo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kawanishi, Yamagata.svg | Original author unknown Derivative version by ReneeWrites | Public domain |
| Flag of Kawara Fukuoka.svg | Fred the Oyster | Public domain |
| Flag of Kawasaki Fukuoka.svg | Unknowm | Public domain |
| Flag of Kawasaki, Kanagawa.svg | Antigoni | Public domain |
| Flag of Kawasaki, Miyagi.svg | SVG file production(image editor): 志賀 慶一 Keiichi SHIGA | Public domain |
| Flag of Kazo Saitama.svg | 加須市 | Public domain |
| Flag of Keisen, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kenbuchi, Hokkaido.svg | Mike Rohsopht | Public domain |
| Flag of Kesennuma Miyagi.svg | Blibla | Public domain |
| Flag of Kiho Mie.svg | ヒッパソス | Public domain |
| Flag of Kihoku, Ehime.svg | 岡山市 合田さち男 | Public domain |
| Flag of Kijo, Miyazaki.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kikuyo, Kumamoto.svg | Original author unknown Vectorized by Los688 | Public domain |
| Flag of Kimino Wakayama.svg | mti 、 Xeror | Public domain |
| Flag of Kimobetsu, Hokkaido.svg | Nardog, Mike Rohsopht | Public domain |
| Flag of Kimotsuki, Kagoshima.svg | Mike Rohsopht | Public domain |
| Flag of Kin, Okinawa.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kinko, Kagoshima.svg | Mike Rohsopht | Public domain |
| Flag of Kirishima, Kagoshima.svg | 田中一則 | Public domain |
| Flag of Kisarazu, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kishiwada, Osaka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kiso, Nagano (town).svg | Mike Rohsopht | Public domain |
| Flag of Kisosaki Mie.svg | ヒッパソス | Public domain |
| Flag of Kitagata Gifu.svg | Fred the Oyster , Mike Rohsopht | Public domain |
| Flag of Kitahiroshima, Hokkaido.svg | Wasabi215 ( talk ) | Public domain |
| Flag of Kitakyushu, Fukuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kitami, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kiyama, Saga.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kobe.svg | N35725E139547 | Public domain |
| Flag of Kochi Prefecture.svg | Kochi prefecture administration Vectorized by Mike Rohsopht | Public domain |
| Flag of Kochi, Kochi.svg | Ch1902 | Public domain |
| Flag of Kodaira, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kofu Tottori.svg | Wasabi215 ( talk ) | Public domain |
| Flag of Kofu, Yamanashi.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Koge, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kokonoe, Oita.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Koori, Fukushima.svg | Mike Rohsopht | Public domain |
| Flag of Kosaka, Akita.svg | Xeror | Public domain |
| Flag of Koshigaya, Saitama.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Koshimizu, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kota, Aichi.svg | Xeror | Public domain |
| Flag of Kotake, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kotoura, Tottori.svg | mti | Public domain |
| Flag of Koumi, Nagano.svg | OperationSakura6144 | CC0 |
| Flag of Koya, Wakayama.svg | Ле Лой | Public domain |
| Flag of Kozagawa, Wakayama.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Kozaki, Chiba.svg | Unknown author Unknown author | Public domain |
| Flag of Kudoyama, Wakayama.svg | Ле Лой | Public domain |
| Flag of Kujukuri, Chiba.svg | Flag of Kujukuri Chiba.JPG : mti derivative work: kuvaly || p , Mike Rohsopht | Public domain |
| Flag of Kuki Saitama.svg | 久喜市章 芦田 為美 （あしだ ためよし）さん | Public domain |
| Flag of Kumagaya, Saitama.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kumakōgen, Ehime.svg | 宇都宮 拓志 | Public domain |
| Flag of Kumamoto Prefecture.svg | Kzaral , Xeror | Public domain |
| Flag of Kumamoto, Kumamoto.svg | Original: Kzaral Vector: Ch1902 , Xeror | Public domain |
| Flag of Kumano, Hiroshima.svg | SpinnerLaserzthe2nd | Public domain |
| Flag of Kumatori, Osaka.svg | Mike Rohsopht | Public domain |
| Flag of Kumenan, Okayama.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kunitachi, Tokyo.svg | Magasjukur2 | Public domain |
| Flag of Kunneppu, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kurashiki, Okayama.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kurate Fukuoka.svg | Fred the Oyster i The source code of this SVG is valid . This vector image was created wi… | Public domain |
| Flag of Kure, Hiroshima.svg | Original: Kzaral Vector: Ch1902 , Xeror | Public domain |
| Flag of Kuriyama, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kuromatsunai, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kuroshio Kochi.svg | 黒潮町 | Public domain |
| Flag of Kurume, Fukuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kusatsu Gunma.svg | Fred the Oyster | Public domain |
| Flag of Kusatsu, Shiga.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kushimoto, Wakayama.svg | Mike Rohsopht | Public domain |
| Flag of Kushiro Town, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kushiro, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kutchan, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Kuwana, Mie.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Kuzumaki, Iwate.svg | Original: mti Vector: Life of Riley , Xeror | Public domain |
| Flag of Kyoto City.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Kyowa, Hokkaido.svg | Nardog | Public domain |
| Flag of Kōnosu, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Kōra, Shiga.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Kōsa, Kumamoto.svg | Original author unknown Vectorized by Jkr2255 | Public domain |
| Flag of Machida, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Maebashi, Gunma.svg | Ch1902 | Public domain |
| Flag of Makubetsu, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Manno, Kagawa.svg | SpinnerLaserzthe2nd | Public domain |
| Flag of Marumori Miyagi.svg | mti | Public domain |
| Flag of Masaki, Ehime.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Mashike, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Mashiko, Tochigi.svg | Mike Rohsopht | Public domain |
| Flag of Matsubara, Osaka.svg | unknown, originally uploaded by 阪神強いなプラス (see source of the source) Redrawn (vector graph… | Public domain |
| Flag of Matsubushi, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Matsudo, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Matsukawa, Nagano.svg | OperationSakura6144 | CC BY 4.0 |
| Flag of Matsumae, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Matsuno, Ehime.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Matsushige, Tokushima.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Matsushima, Miyagi.svg | Mike Rohsopht | Public domain |
| Flag of Matsuyama, Ehime.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Matsuzaki, Shizuoka.svg | Mike Rohsopht | Public domain |
| Flag of Meiwa, Gunma.svg | Shorepine | Public domain |
| Flag of Mie Prefecture.svg | NalesnikLD , Mike Rohsopht | Public domain |
| Flag of Mifune, Kumamoto.svg | Unknown author Unknown author | Public domain |
| Flag of Mihama, Fukui.svg | Mike Rohsopht | Public domain |
| Flag of Mihama, Mie.svg | kelvinsda | Public domain |
| Flag of Miharu, Fukushima.svg | OperationSakura6144 | CC0 |
| Flag of Mikawa, Yamagata.svg | Original: Unknown author Vector: Strenatos | Public domain |
| Flag of Miki, Kagawa.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Minabe, Wakayama.svg | Xeror | Public domain |
| Flag of Minakami, Gunma.svg | Mike Rohsopht | Public domain |
| Flag of Minami, Tokushima.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Minamichita Aichi.svg | Ranjithsiji | Public domain |
| Flag of Minamiechizen, Fukui.svg | Mike Rohsopht | Public domain |
| Flag of Minamifurano, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Minamiise Mie.svg | mti | Public domain |
| Flag of Minamiizu, Shizuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Minamitane, Kagoshima.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Minano, Saitama.svg | Life of Riley , Xeror | Public domain |
| Flag of Minobu, Yananashi.svg | Mike Rohsopht | Public domain |
| Flag of Minowa, Nagano (normal).svg | mti | Public domain |
| Flag of Misasa, Tottori.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Misato, Kumamoto.svg | Mike Rohsopht | Public domain |
| Flag of Misato, Miyagi.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Misato, Saitama (town).svg | Mike Rohsopht | Public domain |
| Flag of Misato, Saitama.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Misato, Shimane.svg | Original author unknown Vectorized by Los688 | Public domain |
| Flag of Mishima, Fukushima.svg | Mike Rohsopht | Public domain |
| Flag of Mishima, Shizuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Mitaka, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Mitake, Gifu.svg | Mike Rohsopht | Public domain |
| Flag of Mitane, Akita.svg | SpinnerLaserzthe2nd | Public domain |
| Flag of Mito, Ibaraki.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Miyagi Prefecture.svg | Monaneko , Mike Rohsopht | Public domain |
| Flag of Miyake, Nara.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Miyako, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Miyakonojo, Miyazaki.svg | Mike Rohsopht | Public domain |
| Flag of Miyashiro Saitama.svg | Ocdp | Public domain |
| Flag of Miyoshi, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Miyota, Nagano.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Mizumaki, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Mori, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Moriguchi, Osaka.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Morioka, Iwate.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Motegi, Tochigi.svg | Mike Rohsopht | Public domain |
| Flag of Motoyama, Kochi.svg | OperationSakura6144 | CC BY 4.0 |
| Flag of Mukawa, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Murata, Miyagi.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Musashino, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Mutsuzawa, Chiba.svg | Mike Rohsopht | Public domain |
| Flag of Nagahama, Shiga.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Nagaizumi Shizuoka.svg | mti for the original file. MacOS Weed for the vectorization. | Public domain |
| Flag of Nagano Prefecture.svg | Unknown | Public domain |
| Flag of Naganohara, Gunma.svg | Mike Rohsopht | Public domain |
| Flag of Naganuma, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Nagara, Chiba.svg | Flag of Nagara Chiba.JPG : mti / derivative work: kuvaly || p | Public domain |
| Flag of Nagareyama, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Nagasaki Prefecture.svg | Original: Unknown author Vector: Alex Tora | Public domain |
| Flag of Nagatoro, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Nagawa, Nagano.svg | Mike Rohsopht | Public domain |
| Flag of Nagiso, Nagano.svg | Mike Rohsopht | Public domain |
| Flag of Nagoya, Aichi.svg | Flag_of_Nagoya.png : Kzaral | Public domain |
| Flag of Naha, Okinawa.svg | Kzaral | Public domain |
| Flag of Nahari, Kochi.svg | Unknown author Unknown author | Public domain |
| Flag of Nakadomari Aomori.svg | Unknown author Unknown author | Public domain |
| Flag of Nakafurano, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Nakagawa, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Nakagawa, Tochigi.svg | Mike Rohsopht | Public domain |
| Flag of Nakai, Kanagawa.svg | Mike Rohsopht | Public domain |
| Flag of Nakanojo, Gunma.svg | Mike Rohsopht | Public domain |
| Flag of Nakanoto, Ishikawa.svg | Mike Rohsopht | Public domain |
| Flag of Nakashibetsu, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Nakatanega, Kagoshima.svg | Mike Rohsopht | Public domain |
| Flag of Nakatonbetsu, Hokkaido.svg | Unknown author Unknown author | Public domain |
| Flag of Nakayama, Yamagata.svg | 中山町 | Public domain |
| Flag of Namegawa, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Namie, Fukushima.svg | Original: Namie Vector: Wasabi215 , tokorokoko | Public domain |
| Flag of Nanbu Aomori.svg | mti | Public domain |
| Flag of Nanbu, Tottori.svg | Original author unknown Vectorized by Los688 | Public domain |
| Flag of Nanbu, Yamanashi.svg | Mike Rohsopht | Public domain |
| Flag of Nara Prefecture.svg | Original: PRiMENON Vector: Wrightbus | Public domain |
| Flag of Nara, Nara (no text).svg | Unknown author Unknown author | Public domain |
| Flag of Naraha, Fukushima.svg | Mike Rohsopht | Public domain |
| Flag of Narashino, Chiba.svg | Original: Ch1902 Vector: Kzaral | Public domain |
| Flag of Narita, Chiba (no text).svg | Unknown author Unknown author | Public domain |
| Flag of Nasu, Tochigi.svg | Mike Rohsopht | Public domain |
| Flag of Neyagawa, Osaka.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Niigata, Niigata.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Niihama, Ehime.svg | Original: Kzaral Vector: Ch1902 , Xeror | Public domain |
| Flag of Niikappu, Hokkaido.svg | Fred the Oyster, Mike Rohsopht | Public domain |
| Flag of Niiza, Saitama.svg | Xeror | Public domain |
| Flag of Niki, Hokkaido.svg | Nardog | Public domain |
| Flag of Ninomiya, Kanagawa.svg | EnviousBird | Public domain |
| Flag of Niseko, Hokkaido.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Nishiizu, Shizuoka.svg | Mike Rohsopht | Public domain |
| Flag of Nishikatsura, Yamanashi (no text).svg | Unknown author Unknown author | Public domain |
| Flag of Nishinomiya, Hyogo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Nishinoshima, Shimane.svg | Original: Unknown author Vector: Fvasconcellos | Public domain |
| Flag of Nishio, Aichi.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Niyodogawa, Kōchi.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Nobeoka, Miyazaki.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Noda, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Nogi Tochigi.svg | Wasabi215 ( talk ) | Public domain |
| Flag of Noheji Aomori.svg | Unknown author Unknown author | Public domain |
| Flag of Nose, Osaka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Noto, Ishikawa.svg | Mike Rohsopht | Public domain |
| Flag of Numata, Hokkaido.svg | Life of Riley, Nardog | Public domain |
| Flag of Numazu, Shizuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Nyuzen, Toyama.svg | mti | Public domain |
| Flag of Oarai, Ibaraki.svg | Mike Rohsopht | Public domain |
| Flag of Obihiro, Hokkaido.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Obira, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Obuse, Nagano.svg | Mike Rohsopht | Public domain |
| Flag of Odai Mie.svg | ヒッパソス | Public domain |
| Flag of Odawara, Kanagawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ogaki, Gifu.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Ogano, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Oguchi, Aichi.svg | Zscout370 | Public domain |
| Flag of Oguni, Kumamoto.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Oi, Fukui.svg | Mike Rohsopht | Public domain |
| Flag of Oirase Aomori.svg | Unknown author Unknown author | Public domain |
| Flag of Oiso, Kanagawa.svg | Mike Rohsopht | Public domain |
| Flag of Oizumi Gunma.svg | 群馬県大泉町 | Public domain |
| Flag of Oji Nara.svg | ヒッパソス | Public domain |
| Flag of Okazaki, Aichi.svg | Blibla | Public domain |
| Flag of Oketo, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Oki, Fukuoka.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Okinawa, Okinawa.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Okoppe, Hokkaido.svg | Fred the Oyster, Mike Rohsopht | Public domain |
| Flag of Okuizumo, Shimane.svg | mti | Public domain |
| Flag of Omaezaki, Shizuoka.svg | Mike Rohsopht | Public domain |
| Flag of Ome, Tokyo.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Omuta, Fukuoka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Onagawa, Miyagi.svg | Town of Onagawa SVG reproduction by tokorokoko | Public domain |
| Flag of Onga, Fukuoka.svg | Original: mti Vector: Xeror | Public domain |
| Flag of Onjuku, Chiba.svg | Original: Unknown author Vector: Strenatos | Public domain |
| Flag of Ono, Fukushima.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Ono, Gifu.svg | Mike Rohsopht | Public domain |
| Flag of Osaka Prefecture.svg | Shane Markle ( OsgoodeLawyer ) , Mike Rohsopht | Public domain |
| Flag of Osaka, Osaka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Osakikamijima, Hiroshima.svg | Mike Rohsopht | Public domain |
| Flag of Osato, Miyagi.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Oshima, Tokyo.svg | Kzaral (original raster), Ch1902 , Mike Rohsopht | Public domain |
| Flag of Ota, Gunma.svg | Ch1902 | Public domain |
| Flag of Otaki, Chiba.svg | Xeror | Public domain |
| Flag of Otaru, Hokkaido.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Oto, Fukuoka.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Otofuke, Hokkaido.svg | Nardog | Public domain |
| Flag of Otsu, Shiga.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Otsuki, Kochi.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Oyama, Tochigi.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Oyodo Nara.svg | ヒッパソス | Public domain |
| Flag of Ozora, Hokkaido.svg | Unknown author Unknown author | Public domain |
| Flag of Rankoshi, Hokkaido.svg | Nardog | Public domain |
| Flag of Ranzan, Saitama.svg | Mike Rohsopht | Public domain |
| Flag of Rausu, Hokkaido.svg | Wahaha2005, Nardog | Public domain |
| Flag of Reihoku, Kumamoto.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Rifu, Miyagi.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Rokunohe, Aomori.svg | Unknown author Unknown author | Public domain |
| Flag of Saga Prefecture.svg | Guilherme Paula , Mike Rohsopht | Public domain |
| Flag of Saitama Prefecture.svg | Monaneko , Xeror , Mike Rohsopht | Public domain |
| Flag of Sakae Chiba.svg | Chris die Seele , Mike Rohsopht | Public domain |
| Flag of Sakahogi, Gifu.svg | Mike Rohsopht | Public domain |
| Flag of Sakai, Osaka.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Sakaiminato, Tottori.svg | Original: Kzaral Vector: Ch1902 , Xeror | Public domain |
| Flag of Sakaki, Nagano.svg | 2012-3-12 | Public domain |
| Flag of Sakura, Chiba.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Sano Tochigi.svg | Fred the Oyster | Public domain |
| Flag of Sapporo, Hokkaido.svg | Lexicon | Public domain |
| Flag of Sasaguri, Fukuoka.svg | Original: Unknown Vector: ReneeWrites | Public domain |
| Flag of Sasebo, Nagasaki.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Satosho, Okayama.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Sayama, Saitama.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Sayo, Hyogo.svg | Original author unknown Vectorized by ReneeWrites | Public domain |
| Flag of Saza, Nagasaki.svg | Original author unknown Derivative version by ReneeWrites | Public domain |
| Flag of Setana, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Seto, Aichi.svg | Kzaral (original raster), Ch1902 | Public domain |
| Flag of Shakotan, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Shari, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Shibayama, Chiba.svg | Mike Rohsopht | Public domain |
| Flag of Shibetsu, Nemuro, Hokkaido.svg | Fred the Oyster | Public domain |
| Flag of Shichigahama, Miyagi.svg | Mike Rohsopht | Public domain |