| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
2451  | Mount Ryōkami  Futagami-yama,Mount Ryokami,Mount Ryōkami,Ryogami San,Ryogami-san,Ryogami-yama,Ryokami-san,Ryokami-y... | Japan, Saitama Chichibu-gun > Ogano-machi | mountain elevation 1723m | N 36° 1′ 22'' | E 138° 50′ 27'' |
| 2452 | Cone Island Cone Island,O-Zuti sima,O-zuchi-jima,Otsuchi Jima,Otsuchi-jima,Otsuchi-shima,Ozuchi-shima,Ozutsu,Ozu... | Japan, | island | N 34° 25′ 7'' | E 133° 55′ 21'' |
| 2453 | Ōzo Jima Oki-karumo Sima,Okikarimo Shima,Okikarumo-shima,Okinokarimo,Ose-no-shima,Ozo Jima,Ozo-shima,Ozono-sh... | Japan, Hyōgo | island | N 34° 14′ 31'' | E 134° 41′ 20'' |
| 2454 | Ōyoko Shima O-yoko-jima,O-yoko-shima,Oyoko Shima,Oyoko Sima,Yoki-shima,Yoko-shima,da heng dao,Ō-yoko-jima,Ō-yoko... | Japan, Ehime | island | N 34° 14′ 42'' | E 132° 57′ 4'' |
| 2455 | Ōyano Jima Oyano Jima,Oyano Sima,Oyano-jima,Oyano-shima,Oyanojima,da shi ye dao,ooyanojima,Ōyano Jima,Ōyano Sim... | Japan, Kumamoto | island | N 32° 35′ 0'' | E 130° 26′ 0'' |
| 2456 | Ō Yama Afuri-yama,Amefuri-yama,Mount Kunim,O Yama,O-yama,da shan,Ō Yama,Ō-yama,大山 | Japan, Kanagawa Isehara | mountain elevation 1245m | N 35° 26′ 26'' | E 139° 13′ 54'' |
| 2457 | Ōtachiba Jima O-Tateba Sima,O-dateba-shima,O-tateba-jima,O-tateba-shima,Odateba Shima,Otachiba Jima,Otachiba-jima,... | Japan, Ehime | island | N 34° 1′ 38'' | E 132° 35′ 28'' |
| 2458 | Ōtabu Shima Otabu Shima,Otabu Sima,Otabu-jima,Otafu-jima,Utabo-shima,da duo fu dao,Ôtabu Sima,Ōtabu Shima,Ōtabu-... | Japan, Okayama | island | N 34° 40′ 57'' | E 134° 17′ 51'' |
| 2459 | Osorakan Zan Kyorakan-yama,Kyorakan-zan,Kyōrakan-zan,Osorakan,Osorakan Zan,Osorakan-yama,Osorakan-zan,kong luo ha... | Japan, Shimane Masuda Shi | mountain elevation 1346m | N 34° 35′ 43'' | E 132° 7′ 46'' |
| 2460 | O Jima Ko Sima,Ko-jima,Ko-shima,O Jima,O-shima,Round Island,xiao dao,小島 | Japan, Kagawa | island | N 34° 20′ 6'' | E 133° 38′ 32'' |
| 2461 | O Shima North Siro Sima,O Shima,O Sima,O-jima,O-shima,Otoko-shima,Shira Shima,Shira-shima,nan dao,男島 | Japan, Fukuoka Kitakyushu City > Wakamatsu Ku | island | N 34° 0′ 51'' | E 130° 43′ 33'' |
| 2462 | Ō Shima Kosime no Oosima,O Shima,O Sima,O-shima,Tchikuzen-Oshima,Tchikuzen-Ōshima,Wilson Island,Wilsons Isla... | Japan, Fukuoka | island | N 33° 54′ 8'' | E 130° 25′ 26'' |
| 2463 | Ō Shima O Shima,O Sima,O-shima,U-shima,da dao,ooshima,Ō Shima,Ō-shima,おおしま,オオシマ,大島 | Japan, Kumamoto | island | N 32° 10′ 58'' | E 129° 58′ 3'' |
| 2464 | Ou Jima O Sima,O-Jima,O-shima,Obaru-jima,Obaru-shima,Obubaru-shima,Oku-shima,Omu-shima,Ou Jima,Yobu-shima,ao... | Japan, Okinawa | island | N 26° 38′ 20'' | E 128° 1′ 59'' |
| 2465 | Ō Jima O Jima,O Sima,O-jima,O-shima,Ou Jima,Sehichinbaro-shima,ao wu dao,oujima,Ō Jima,Ō Sima,Ō-jima,Ō-shim... | Japan, Okinawa | island | N 26° 7′ 46'' | E 127° 46′ 22'' |
| 2466 | Oshaku Jima Ogami Sima,Ogami-shima,Oshaku Jima,Oshaku Shima,Oshaku-jima,Osyaku Sima,Otsumi-shima,Togami Sima,Tôg... | Japan, Akita | island | N 39° 11′ 10'' | E 139° 31′ 19'' |
| 2467 | Ōsakishimo Jima Mitarai-shima,Osaki Island,Osaki-Simo Sima,Osakishimo,Osakishimo Jima,Osakishimo-jima,Osakishimo-shi... | Japan, Hiroshima | island | N 34° 10′ 23'' | E 132° 49′ 59'' |
| 2468 | Orono Shima Cone Island,Obree Island,Oro No Sima,Oro Sima,Orono Shima,Orono-shima,Oronoshima,Round Island,oronos... | Japan, Fukuoka Fukuoka City > Nishi | island elevation 109m | N 33° 52′ 3'' | E 130° 2′ 11'' |
| 2469 | Ōnogame Jima O-no-game Hana,Ono Game,Ono-kame-hana,Ono-kame-shima,Onogame Jima,Onogameshima,Onokame,da ye gui dao... | Japan, Niigata Sado | point | N 38° 19′ 18'' | E 138° 27′ 30'' |
| 2470 | Ōnohara Jima O-no-hara Sima,Onohara,Onohara Jima,Onohara-jima,Sambon-dake,da ye yuan dao,Ô-no-hara Sima,Ōnohara J... | Japan, Tokyo | island | N 34° 2′ 46'' | E 139° 22′ 56'' |
| 2471 | Ōnasami Jima O-na-sami Sima,O-nasami-jima,Onasabi-jima,Onasabi-shima,Onasami Jima,Onasami-shima,da nai zuo mei da... | Japan, Hiroshima | island | N 34° 16′ 38'' | E 132° 22′ 13'' |
| 2472 | Mount Ōmure Mount Omure,Mount Ōmure,Omura-yama,Omure San,Omure-san,Omure-yama,da cun shan,Ōmure San,Ōmure-san,Ōm... | Japan, Oita Kitsuki Shi | mountain elevation 418m | N 33° 27′ 5'' | E 131° 28′ 11'' |
| 2473 | Ōmi Shima Omi,Omi Shima,Omi Sima,Omi-shima,da san dao ,oomishima,Ōmi Shima,Ōmi-shima,おおみしま,大三島 | Japan, Ehime Imabari | island | N 34° 14′ 56'' | E 133° 1′ 0'' |
| 2474 | Ōmine Sanmyaku Omine Sanmyaku,Omine-sammyaku,Omine-san,Yamato Alps,Yamato-arupusu,da feng shan mai,Ōmine Sanmyaku,Ō... | Japan, | mountains | N 34° 10′ 0'' | E 135° 50′ 0'' |
| 2475 | Onbase Jima Ombase-jima,Ombase-shima,Ombose-shima,Onbase Jima,Onbase Shima,Onbase Sima,Onghashi Rocks,en chi dao... | Japan, Tokyo | islands | N 34° 11′ 9'' | E 139° 4′ 29'' |
| 2476 | Ōgusu Yama Ogusu Yama,Ogusu-yama,Okusu Yama,Okusu-yama,da nan shan,oogusuyama,Ōgusu Yama,Ōgusu-yama,Ōkusu Yama,... | Japan, Kanagawa Yokosuka | hill | N 35° 14′ 59'' | E 139° 37′ 39'' |
| 2477 | Ōkurokami Jima O Kuroshima,O-kurogami-jima,O-kurokami Sima,O-kurokami-shima,Okurogami-shima,Okurokami,Okurokami Jim... | Japan, Hiroshima | island | N 34° 9′ 39'' | E 132° 23′ 49'' |
| 2478 | Ōkuno Shima Kuno Sima,Okuno,Okuno Island,Okuno Shima,Okuno Sima,Okuno-shima,Okunoshima,Usagi Shima,da jiu ye dao... | Japan, Hiroshima | island | N 34° 18′ 30'' | E 132° 59′ 36'' |
| 2479 | Okoga Shima Oki-Ko Sima,Okiko jima,Oko-ga Sima,Oko-jima,Oko-shima,Okoga Shima,Okoga-shima,chong xiao dao,沖小島 | Japan, Kagoshima | island | N 31° 32′ 36'' | E 130° 36′ 54'' |
| 2480 | Oki Islands Oki,Oki Islands,Oki Retto,Oki Rettō,Oki Shoto,Oki Shotō,Oki-gunto,Oki-guntō,Oki-shoto,Oki-shotō,okis... | Japan, Shimane | islands | N 36° 15′ 0'' | E 133° 15′ 0'' |
| 2481 | Okinotori Shima Douglas Reef,Engelsbroogte,Oki-no-tori-sima,Okino-tori-shima,Okinotori Shima,Okinotorishima,Parece V... | Japan, | island | N 20° 25′ 0'' | E 136° 5′ 0'' |
| 2482 | Okino Island Oki-no Sima,Okino Island,Okino Shima,Okino-shima,Okinoshima,Tomangai Sima,Tomoga,chongno dao,沖ノ島 | Japan, Wakayama | island | N 34° 16′ 55'' | E 135° 0′ 42'' |
| 2483 | Okinawa Islands Churaashima,Okinawa,Okinawa Group,Okinawa Gunto,Okinawa Guntō,Okinawa Islands,Okinawa Shoto,Okinawa ... | Japan, Okinawa | islands | N 26° 41′ 35'' | E 128° 2′ 37'' |
| 2484 | Okimuku Shima Oki-muku Sima,Oki-muku-jima,Okimuka-shima,Okimuku Shima,Okino-akanashi-jima,Okino-muku-jima,Okino-mu... | Japan, Oita | island | N 33° 10′ 3'' | E 131° 59′ 10'' |
| 2485 | Okiakime Jima Akime Sima,Akime-shima,Biro-jima,Biro-shima,Birō-jima,Birō-shima,Oki-akime-shima,Okiakime Jima,Okiak... | Japan, Kagoshima | island | N 31° 21′ 21'' | E 130° 9′ 47'' |
| 2486 | Okamura Jima Okamura,Okamura Jima,Okamura Sima,Okamura-jima,Okamura-shima,gang cun dao,okamurajima,おかむらじま,岡村島 | Japan, Ehime Imabari | island | N 34° 11′ 14'' | E 132° 52′ 33'' |
| 2487 | Ukado Point Ekado Point,Okado Hana,Okado-bana,Okado-hana,Okado-saki,Osumi-hana,Osumi-saki,Osumi-zaki,Ukado Point... | Japan, Kagawa Shōzu-gun > Shōdoshima Chō | point | N 34° 25′ 58'' | E 134° 20′ 12'' |
| 2488 | Ōhiki Shima Hiki Shima,O-Hiki Sima,O-gama-shima,Oga-jima,Ohiki Shima,Okino-shima,Osama-jima,Ō-gama-shima,Ōga-jim... | Japan, Nagasaki | island | N 32° 52′ 4'' | E 129° 33′ 33'' |
| 2489 | Ōkushi Misaki O-gushi-saki,O-gushi-zaki,Ogushino-hana,Okushi Misaki,Okushi-saki,Okushino-hana,Okusi Saki,da chuan ... | Japan, Kagawa Sanuki-shi | point | N 34° 22′ 0'' | E 134° 12′ 30'' |
| 2490 | Ōetaka Yama Oe-no-takayama,Oe-yama,Oetaka Yama,Oetaka-yama,Oyetaka-yama,Taka-yama,da jiang gao shan,Ōe-no-takaya... | Japan, Shimane Ōda Shi | mountain | N 35° 4′ 0'' | E 132° 26′ 0'' |
| 2491 | Ōbishaku Shima O-Ebisyaku Sima,O-Hisyaku,O-ebishaku,O-ebishaku-shima,Obishaku Shima,Ohishaku,da bing biao dao,Ô-His... | Japan, Okayama | island | N 34° 26′ 47'' | E 133° 41′ 34'' |
| 2492 | Ōtate Shima O-date-shima,O-date-sima,Odate Shima,Oo-tate,Otade-shima,Otate Shima,Otate-shima,da li dao,Ō-date-sh... | Japan, Nagasaki | island | N 33° 1′ 8'' | E 129° 26′ 4'' |
| 2493 | Ō Take Ko-dake,O Take,O-dake,O-take,da yue,ootake,Ō Take,Ō-dake,おおたけ,オオタケ,大岳 | Japan, Kumamoto Uki Shi | mountain | N 32° 39′ 12'' | E 130° 34′ 39'' |
| 2494 | Mount Ōdaigahara Mount Odaigahara,Mount Ōdaigahara,Odai,Odaigahara Yama,Odaigahara-san,da taike yuan shan,Ōdai,Ōdaiga... | Japan, Nara Yoshino-gun > Kamikitayama Mura | mountain elevation 1695m | N 34° 11′ 8'' | E 136° 4′ 19'' |
| 2495 | Ōbana Jima Komine Shima,Obana Jima,Obana-jima,Obana-shima,Ohana-shima,Sabu-shima,da bi dao,Ōbana Jima,Ōbana-jim... | Japan, Shimane | island | N 36° 17′ 54'' | E 133° 22′ 17'' |
| 2496 | Obama-jima Kobama Sima,Kobama-jima,Kobama-shima,Koubah,Obama-jima,Obama-shima,Ohama-jima,xiao bang dao,小浜島 | Japan, | island | N 24° 20′ 31'' | E 123° 58′ 50'' |
| 2497 | Mount Asahi Mount Asahi,O-Asahi Take,O-asahi-dake,Oasahi Dake,Oasaki Take,da chao ri yue,Ō-asahi-dake,Ōasahi Dak... | Japan, Yamagata Nishimurayama-gun > Asahi Machi | mountain elevation 1870m | N 38° 15′ 38'' | E 139° 55′ 20'' |
| 2498 | Edateku Jima Edataku-shima,Edateku Jima,Edateku-shima,Edato Sima,Edato-shima,Edatō Sima,Edatō-shima,Shideku-jima,... | Japan, Kagoshima Ōshima-gun > Uken Son | island | N 28° 17′ 37'' | E 129° 11′ 56'' |
| 2499 | Deba Jima Deba Jima,Deba-jima,Deba-shima,Deha-jima,Dewa Sima,Dewa-shima,Teba Shima,chu yu dao,出羽島 | Japan, Tokushima | island | N 33° 37′ 58'' | E 134° 25′ 27'' |
| 2500 | Daitō Islands Daito Islands,Daito Shoto,Daito Sima,Daito-jima,Daito-shima,Daito-shoto,Daitō Islands,Daitō Shotō,Da... | Japan, Okinawa | islands population 2,107 | N 25° 53′ 39'' | E 131° 16′ 29'' |
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