| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obispo | city | Nuevo Leon | Mexico | 25.55 | -99.65 | 830 | 674 |
| Ocho de Octubre | city | Nuevo Leon | Mexico | 26.13 | -99.57 | 830 | 2312 |
| Ojase | city | Nuevo Leon | Mexico | 26.13 | -100.33 | 1807 | 1043 |
| Ojeda | city | Nuevo Leon | Mexico | 25.03 | -100.00 | 2713 | 315 |
| Ojito de Agua | city | Nuevo Leon | Mexico | 25.61 | -99.56 | 830 | 596 |
| Ojito de Agua | city | Nuevo Leon | Mexico | 25.67 | -98.66 | 830 | 25 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 26.28 | -99.84 | 1200 | 447 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 26.49 | -99.45 | 410 | 79 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.88 | -99.63 | 830 | 596 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.33 | -99.66 | 931 | 2328 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.20 | -99.76 | 1217 | 19318 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 24.78 | -99.70 | 1669 | 1192 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 24.35 | -100.26 | 6709 | 596 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.61 | -99.56 | 830 | 596 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.57 | -100.40 | 3349 | 38823 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.67 | -98.66 | 830 | 25 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.86 | -100.51 | 3651 | 6600 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 24.40 | -99.64 | 2509 | 780 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 23.99 | -99.61 | 7588 | 662 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.21 | -100.14 | 5029 | 646 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.24 | -99.84 | 1669 | 19126 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.36 | -100.12 | 1958 | 8492 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 24.61 | -100.15 | 6709 | 596 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 26.47 | -99.93 | 830 | 150 |
| Ojo de Agua | city | Nuevo Leon | Mexico | 25.51 | -99.11 | 830 | 0 |
| Ojo de Agua de Matias | city | Nuevo Leon | Mexico | 26.58 | -100.30 | 3349 | 165 |
| Ojos de Agua | city | Nuevo Leon | Mexico | 25.48 | -100.08 | 1669 | 4798 |
| Olmo | city | Nuevo Leon | Mexico | 25.91 | -99.31 | 410 | 547 |
| Once Lomas | city | Nuevo Leon | Mexico | 26.00 | -99.35 | 830 | 423 |
| Once de Febrero | city | Nuevo Leon | Mexico | 26.01 | -99.41 | 830 | 306 |
| Once de Mayo (Rancho Escondido) | city | Nuevo Leon | Mexico | 26.41 | -100.39 | 1669 | 174 |
| Opština Apodaca | city | Nuevo Leon | Mexico | 25.76 | -100.16 | 1669 | 321562 |