| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ōga | city | Mie | Japan | 34.11 | 136.23 | 19 | 8635 |
| Ōgai | city | Gunma | Japan | 36.18 | 138.93 | 1669 | 9297 |
| Ōgai | city | Miyagi | Japan | 38.37 | 141.02 | 328 | 92482 |
| Ōgaki | city | Gifu | Japan | 35.35 | 136.62 | 68 | 159513 |
| Ōgakichō-hitonose | city | Hiroshima | Japan | 34.20 | 132.47 | 242 | 24479 |
| Ōgakuchi | city | Chiba | Japan | 35.04 | 139.90 | 68 | 31675 |
| Ōgami | city | Chiba | Japan | 35.04 | 139.87 | 164 | 26143 |
| Ōgan-ri | city | Jeonnam | Korea, Republic of (South) | 34.44 | 126.88 | 0 | 5252 |
| Ōgan-ri | city | Jeonnam | Korea, Republic of (South) | 34.44 | 126.86 | 3 | 6071 |
| Ōgane | city | Chiba | Japan | 35.35 | 140.05 | 65 | 42791 |
| Ōganeku | city | Okinawa | Japan | 26.70 | 128.12 | 311 | 2829 |
| Ōgara | city | Akita | Japan | 40.30 | 140.16 | 341 | 7048 |
| Ōgaran | city | Kagoshima | Japan | 31.18 | 130.81 | 830 | 7236 |
| Ōgasato | city | Aichi | Japan | 34.78 | 137.40 | 49 | 160563 |
| Ōgashio | city | Mie | Japan | 34.36 | 136.41 | 360 | 6146 |
| Ōgashiwa-shinden | city | Ibaraki | Japan | 35.95 | 139.97 | 65 | 206790 |
| Ōgasho | city | Mie | Japan | 34.36 | 136.41 | 360 | 6146 |
| Ōgata | city | Tokushima | Japan | 33.88 | 134.67 | 0 | 24952 |
| Ōgawasaki | city | Chiba | Japan | 35.22 | 139.94 | 193 | 15123 |
| Ōgi | city | Osaka | Japan | 34.35 | 135.37 | 830 | 166857 |
| Ōgibashi | city | Tokyo | Japan | 35.68 | 139.82 | 3 | 1161470 |
| Ōgida | city | Aomori | Japan | 40.49 | 141.31 | 180 | 12775 |
| Ōgida | city | Akita | Japan | 40.23 | 140.58 | 232 | 19523 |
| Ōgida | city | Akita | Japan | 40.19 | 140.09 | 127 | 22774 |
| Ōgigaura | city | Tokyo | Japan | 27.07 | 142.20 | 364 | 803 |
| Ōgigaura | city | Fukuoka | Japan | 33.82 | 130.72 | 160 | 268462 |
| Ōgigayatsu | city | Kanagawa | Japan | 35.33 | 139.55 | 59 | 464067 |
| Ōgimachi | city | Chiba | Japan | 35.18 | 140.36 | 22 | 20637 |
| Ōgimachiya | city | Saitama | Japan | 35.83 | 139.40 | 328 | 374074 |
| Ōgimi-son | city | Okinawa | Japan | 26.70 | 128.12 | 311 | 2829 |
| Ōgino | city | Kanagawa | Japan | 35.47 | 139.44 | 164 | 639827 |
| Ōginotai | city | Akita | Japan | 40.34 | 140.83 | 984 | 3683 |
| Ōgiyama | city | Kanagawa | Japan | 35.21 | 139.65 | 157 | 281620 |
| Ōgo | city | Iwate | Japan | 40.31 | 141.33 | 830 | 13652 |
| Ōgochō-kitaso’o | city | Hyogo | Japan | 34.84 | 135.11 | 830 | 25735 |
| Ōgochō-kōda | city | Hyogo | Japan | 34.83 | 135.16 | 830 | 72380 |
| Ōgochō-ōgo | city | Hyogo | Japan | 34.81 | 135.09 | 830 | 47348 |
| Ōgomachi | city | Gunma | Japan | 36.42 | 139.17 | 830 | 103620 |
| Ōgome | city | Kanagawa | Japan | 35.16 | 139.63 | 65 | 90072 |
| Ōgora | city | Oita | Japan | 32.95 | 131.95 | 328 | 24596 |
| Ōgoshichō-kisawa | city | Kagawa | Japan | 34.37 | 133.92 | 324 | 44645 |
| Ōgoyama | city | Shizuoka | Japan | 35.24 | 138.86 | 1669 | 52057 |
| Ōguchi | city | Fukuoka | Japan | 33.63 | 130.19 | 75 | 41678 |
| Ōguchi | city | Saitama | Japan | 35.94 | 139.74 | 29 | 415810 |
| Ōguchi-nakamachi | city | Kanagawa | Japan | 35.49 | 139.64 | 42 | 848962 |
| Ōguchi-sato | city | Kagoshima | Japan | 32.06 | 130.61 | 830 | 24525 |
| Ōguda | city | Kagoshima | Japan | 28.10 | 129.32 | 32 | 2241 |
| Ōguki | city | Ehime | Japan | 33.52 | 132.67 | 328 | 15451 |
| Ōguma | city | Wakayama | Japan | 33.98 | 135.57 | 2509 | 1716 |
| Ōgusuku | city | Okinawa | Japan | 26.16 | 127.76 | 830 | 131634 |
| Ōgōṟum | city | Laghman | Afghanistan | 34.85 | 70.45 | 4520 | 1144 |