| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Обвал | city | Penzenskaya Oblast' | Russia | 52.75 | 43.25 | 830 | 1600 |
| Овчарное | city | Penzenskaya Oblast' | Russia | 53.52 | 43.75 | 830 | 5692 |
| Овчарня | city | Penzenskaya Oblast' | Russia | 53.63 | 42.97 | 830 | 1192 |
| Огарёвка | city | Penzenskaya Oblast' | Russia | 52.58 | 44.94 | 830 | 747 |
| Огарёвка | city | Penzenskaya Oblast' | Russia | 52.49 | 45.42 | 830 | 872 |
| Озерки | city | Penzenskaya Oblast' | Russia | 53.49 | 46.46 | 974 | 1190 |
| Озерки | city | Penzenskaya Oblast' | Russia | 52.63 | 43.32 | 830 | 1603 |
| Озерки | city | Penzenskaya Oblast' | Russia | 53.41 | 44.23 | 830 | 1192 |
| Октябрь | city | Penzenskaya Oblast' | Russia | 53.47 | 44.91 | 830 | 699 |
| Октябрь | city | Penzenskaya Oblast' | Russia | 53.49 | 44.00 | 830 | 149 |
| Октябрьская | city | Penzenskaya Oblast' | Russia | 52.85 | 44.94 | 856 | 1011 |
| Октябрьская | city | Penzenskaya Oblast' | Russia | 53.07 | 43.07 | 830 | 1336 |
| Октябрьский | city | Penzenskaya Oblast' | Russia | 53.13 | 44.19 | 830 | 298 |
| Октябрьское | city | Penzenskaya Oblast' | Russia | 52.45 | 44.12 | 830 | 6337 |
| Октябрьское | city | Penzenskaya Oblast' | Russia | 52.87 | 46.49 | 830 | 1490 |
| Оленевка | city | Penzenskaya Oblast' | Russia | 52.98 | 44.88 | 830 | 866 |
| Ольшанка | city | Penzenskaya Oblast' | Russia | 52.48 | 43.18 | 830 | 1277 |
| Ольшанка | city | Penzenskaya Oblast' | Russia | 52.86 | 43.09 | 830 | 1341 |
| Ольшанка | city | Penzenskaya Oblast' | Russia | 53.08 | 45.02 | 830 | 36644 |
| Ольшанка | city | Penzenskaya Oblast' | Russia | 53.48 | 42.93 | 830 | 1219 |
| Орловка | city | Penzenskaya Oblast' | Russia | 53.44 | 42.89 | 830 | 1220 |
| Орловка | city | Penzenskaya Oblast' | Russia | 53.28 | 44.52 | 912 | 1192 |
| Орловка | city | Penzenskaya Oblast' | Russia | 53.94 | 43.69 | 830 | 770 |
| Орловка | city | Penzenskaya Oblast' | Russia | 52.56 | 44.32 | 830 | 298 |
| Островцы | city | Penzenskaya Oblast' | Russia | 52.82 | 44.45 | 830 | 1490 |
| Отделение | city | Penzenskaya Oblast' | Russia | 53.16 | 44.33 | 839 | 480 |
| Отделение | city | Penzenskaya Oblast' | Russia | 52.99 | 44.82 | 830 | 298 |
| Отделение Номер Два Оленевский | city | Penzenskaya Oblast' | Russia | 52.99 | 44.82 | 830 | 298 |
| Отделение Совхоза | city | Penzenskaya Oblast' | Russia | 53.69 | 46.15 | 1013 | 9530 |
| Отделение Совхоза Зеленодольский | city | Penzenskaya Oblast' | Russia | 53.69 | 46.15 | 1013 | 9530 |
| Откормсовхоз | city | Penzenskaya Oblast' | Russia | 53.20 | 46.70 | 1020 | 1966 |
| Оторма | city | Penzenskaya Oblast' | Russia | 53.54 | 42.51 | 830 | 1490 |
| Отрада | city | Penzenskaya Oblast' | Russia | 52.65 | 44.87 | 830 | 1200 |
| Отрада | city | Penzenskaya Oblast' | Russia | 53.22 | 44.38 | 830 | 1152 |
| Отрадный | city | Penzenskaya Oblast' | Russia | 53.26 | 44.29 | 830 | 923 |