| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| O'Neil Landing | city | New Mexico | United States | 35.86639 | -106.795 | 8143 | 283 |
| Oak Grove | city | New Mexico | United States | 32.63083 | -108.34417 | 5997 | 83 |
| Oasis | city | New Mexico | United States | 32.92444 | -107.31667 | 4202 | 45 |
| Obar | city | New Mexico | United States | 35.535 | -103.20083 | 4097 | 98 |
| Ocate | city | New Mexico | United States | 36.17556 | -105.0475 | 7178 | 33 |
| Ochoa | city | New Mexico | United States | 32.19167 | -103.43972 | 3412 | 103 |
| Oil Center | city | New Mexico | United States | 32.49917 | -103.26083 | 3579 | 603 |
| Ojita | city | New Mexico | United States | 35.49861 | -105.245 | 6397 | 168 |
| Ojito | city | New Mexico | United States | 36.42972 | -107.08722 | 7394 | 97 |
| Ojito | city | New Mexico | United States | 36.14056 | -105.71417 | 7998 | 1311 |
| Ojitos Frios | city | New Mexico | United States | 35.51667 | -105.31694 | 6499 | 322 |
| Ojo Amarillo | city | New Mexico | United States | 36.69333 | -108.36861 | 5465 | 556 |
| Ojo Caliente | city | New Mexico | United States | 34.91667 | -108.96778 | 6387 | 346 |
| Ojo Caliente | city | New Mexico | United States | 36.30306 | -106.04611 | 6397 | 273 |
| Ojo Encino | city | New Mexico | United States | 35.95556 | -107.34722 | 6751 | 80 |
| Ojo Feliz | city | New Mexico | United States | 36.05778 | -105.11778 | 7588 | 34 |
| Ojo Sarco | city | New Mexico | United States | 36.1225 | -105.78278 | 7542 | 1007 |
| Old Campbell Place | city | New Mexico | United States | 33.84444 | -108.89194 | 6998 | 42 |
| Old Carthage | city | New Mexico | United States | 33.87667 | -106.72694 | 5209 | 70 |
| Old Chilili | city | New Mexico | United States | 34.90639 | -106.19667 | 6587 | 1173 |
| Old Hachita | city | New Mexico | United States | 31.91389 | -108.43222 | 4895 | 83 |
| Old Horner Place | city | New Mexico | United States | 32.79889 | -104.50694 | 3599 | 596 |
| Old Horse Springs | city | New Mexico | United States | 33.92444 | -108.22722 | 6998 | 5 |
| Old Isaacs Place | city | New Mexico | United States | 31.69472 | -108.89722 | 5213 | 33 |
| Old Longbotbam Place | city | New Mexico | United States | 32.93333 | -105.17111 | 5400 | 117 |
| Old Moses | city | New Mexico | United States | 36.68389 | -103.07722 | 4796 | 15 |
| Old Town | city | New Mexico | United States | 32.55306 | -107.91417 | 4986 | 205 |
| Old Town | city | New Mexico | United States | 35.095 | -106.67028 | 4950 | 108026 |
| Old Waterman Place | city | New Mexico | United States | 33.43139 | -108.73778 | 7198 | 42 |
| Old Wright Place | city | New Mexico | United States | 32.48056 | -105.89944 | 4370 | 56 |
| Olive | city | New Mexico | United States | 33.95083 | -104.0375 | 3973 | 33 |
| Omega | city | New Mexico | United States | 34.32306 | -108.37389 | 7191 | 5 |
| Omlee | city | New Mexico | United States | 32.83694 | -105.97111 | 4186 | 13774 |
| Onava | city | New Mexico | United States | 35.69667 | -105.09389 | 6706 | 131 |
| Optimo | city | New Mexico | United States | 35.89028 | -104.80306 | 6351 | 33 |
| Orange | city | New Mexico | United States | 31.86083 | -106.63556 | 3786 | 11280 |
| Orchard Place | city | New Mexico | United States | 34.69278 | -107.47639 | 6030 | 33 |
| Organ | city | New Mexico | United States | 32.42556 | -106.59611 | 5196 | 1870 |
| Orogrande | city | New Mexico | United States | 32.37111 | -106.08389 | 4199 | 60 |
| Ortiz historical | city | New Mexico | United States | 35.33611 | -106.15111 | 7372 | 322 |
| Oscura | city | New Mexico | United States | 33.48361 | -106.05389 | 5072 | 75 |
| Otis | city | New Mexico | United States | 32.35111 | -104.16806 | 3093 | 6611 |
| Otowi | city | New Mexico | United States | 35.87583 | -106.14194 | 5695 | 2164 |
| Otto | city | New Mexico | United States | 35.07306 | -106.00833 | 6197 | 394 |
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