| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| O & M FACILITIES | airport | United States | 46.42 | -117.04 | 744 | 0 | |
| O AND G | airport | United States | 41.77 | -73.12 | 600 | 0 | |
| O Bannon Land | city | Virginia | United States | 38.34 | -77.48 | 101 | |
| O Henry Oaks | city | North Carolina | United States | 36.12 | -79.77 | 830 | |
| O J Mathison Mobile Home Park | city | Minnesota | United States | 47.53 | -95.26 | 1669 | |
| O K DIES | airport | United States | 40.90 | -80.93 | 1280 | 0 | |
| O K FLYING CLUB INC | airport | United States | 39.19 | -89.31 | 665 | 0 | |
| O Kleras | city | Wisconsin | United States | 44.81 | -91.50 | 830 | |
| O Neal | city | Georgia | United States | 31.40 | -81.94 | 59 | |
| O S WYATT | airport | United States | 27.42 | -98.60 | 532 | 0 | |
| O and J Colonia | city | Texas | United States | 26.10 | -97.96 | 65 |