| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oik | city | Zhambyl | Kazakhstan | 43.78 | 70.95 | 1194 | 298 |
| Oikama | city | Hokkaido | Japan | 42.59 | 143.45 | 52 | 761 |
| Oikamanae | city | Hokkaido | Japan | 42.59 | 143.45 | 52 | 761 |
| Oikami | city | Kagawa | Japan | 34.15 | 133.82 | 830 | 30759 |
| Oikamimachi | city | Kumamoto | Japan | 32.21 | 130.76 | 830 | 8274 |
| Oikana | city | Nusa Tenggara Timur | Indonesia | -9.61 | 124.61 | 898 | 4172 |
| Oikari | city | Keski-Suomi | Finland | 63.00 | 24.70 | 830 | 718 |
| Oikarila | city | Kainuu | Finland | 64.57 | 27.73 | 830 | 161 |
| Oikarila | city | Kainuu | Finland | 64.55 | 28.18 | 830 | 149 |
| Oikarila | city | Kainuu | Finland | 64.42 | 27.58 | 830 | 261 |
| Oikas-Aslamas | city | Chuvashiya | Russia | 55.95 | 46.50 | 406 | 2384 |
| Oikata | city | Akita | Japan | 39.30 | 140.28 | 410 | 3365 |
| Oikawa | city | Mie | Japan | 34.64 | 136.20 | 1669 | 25437 |
| Oike | city | Shimane | Japan | 35.32 | 132.65 | 0 | 22821 |
| Oike | city | Chiba | Japan | 35.21 | 140.37 | 187 | 22594 |
| Oike | city | Kumamoto | Japan | 32.75 | 130.81 | 324 | 68476 |
| Oike | city | Kumamoto | Japan | 32.70 | 130.57 | 374 | 19623 |
| Oike-akinaga | city | Kumamoto | Japan | 32.76 | 130.80 | 203 | 81503 |
| Oike-cho | city | Kanagawa | Japan | 35.45 | 139.54 | 262 | 833894 |
| Oikecho | city | Kanagawa | Japan | 35.45 | 139.54 | 262 | 833894 |
| Oikekami | city | Chiba | Japan | 35.20 | 140.37 | 196 | 22594 |
| Oikemachi | city | Fukuoka | Japan | 33.90 | 130.79 | 3 | 205449 |
| Oikeshimo | city | Chiba | Japan | 35.21 | 140.37 | 183 | 24367 |
| Oikete | city | Katanga | Congo (Dem. Republic of The)-(Zaire) | -2.52 | 22.83 | 1669 | 298 |
| Oikhalía | city | Peloponnisos | Greece | 37.25 | 22.00 | 311 | 4413 |
| Oikia | city | Euskadi | Spain | 43.28 | -2.23 | 347 | 21396 |
| Oikiri | city | Iwate | Japan | 39.64 | 142.02 | 91 | 5820 |
| Oikismos Agiasmata | city | Voreio Aigaio | Greece | 38.59 | 25.94 | 1092 | 507 |
| Oikismos Lilikas | city | Voreio Aigaio | Greece | 38.21 | 26.06 | 0 | 2728 |
| Oikismós | city | Attiki | Greece | 38.15 | 23.86 | 1099 | 50794 |
| Oikismós Anthéon | city | Attiki | Greece | 38.28 | 23.91 | 830 | 3920 |
| Oikismós Lachnón | city | Attiki | Greece | 38.30 | 23.81 | 830 | 9387 |
| Oikismós Papágou | city | Attiki | Greece | 37.99 | 23.79 | 862 | 766923 |
| Oikismós Pontíon | city | Attiki | Greece | 38.15 | 23.86 | 1099 | 50794 |
| Oikismós Ágios Ioánnis | city | Voreio Aigaio | Greece | 38.21 | 26.07 | 0 | 2580 |
| Oikiwa | city | Western | Papua New Guinea | -7.90 | 142.83 | 830 | 149 |
| Oikkot | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.58 | 125.34 | 13 | 27085 |
| Oikonomaiika | city | Dytiki Ellada | Greece | 38.15 | 22.37 | 3 | 4117 |
| Oikonomiánika | city | Peloponnisos | Greece | 36.52 | 23.05 | 0 | 3771 |
| Oikoshi | city | Chiba | Japan | 35.13 | 140.00 | 209 | 12251 |
| Oikoto | city | Ohangwena | Namibia | -17.42 | 15.68 | 3572 | 6518 |
| Oikubo | city | Aomori | Japan | 40.39 | 141.11 | 830 | 2112 |
| Oikuku | city | Ohangwena | Namibia | -17.52 | 16.75 | 3736 | 896 |
| Oikull | city | Palau | 7.37 | 134.58 | 3 | 610 | |
| Oikull | city | Palau | United States | 7.37 | 134.58 | 3 | |
| Oikull Hamlet | city | Palau | 7.37 | 134.58 | 3 | 610 | |
| Oikurila | city | Kainuu | Finland | 64.57 | 27.73 | 830 | 161 |