| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oya | city | Jarvamaa | Estonia | 58.8047222 | 25.7097222 | 209 | 1310 |
| Oyaerse | city | Raplamaa | Estonia | 58.7402778 | 24.6225 | 114 | 1242 |
| Oyakyula | city | Viljandimaa | Estonia | 58.5497222 | 25.285 | 134 | 1588 |
| Oyakyula | city | Harjumaa | Estonia | 59.3336111 | 25.3655556 | 193 | 9791 |
| Oyakyula | city | Jarvamaa | Estonia | 59.0166667 | 25.5833333 | 265 | 1302 |
| Oyakyula | city | Jarvamaa | Estonia | 59.2838889 | 25.7686111 | 298 | 3923 |
| Oyakyula | city | Laane-Virumaa | Estonia | 59.4822222 | 26.4836111 | 157 | 1523 |
| Oyapere | city | Raplamaa | Estonia | 58.7227778 | 24.2569444 | 52 | 1079 |
| Oyasare | city | Polvamaa | Estonia | 57.95 | 26.95 | 301 | 1416 |
| Oyaso | city | Parnumaa | Estonia | 58.0858333 | 24.535 | 68 | 1355 |
| Oyna | city | Saaremaa | Estonia | 58.5672222 | 23.3322222 | 45 | 751 |
| Oyniku | city | Hiiumaa | Estonia | 58.8505556 | 22.4663889 | 49 | 755 |
| Oyssare | city | Viljandimaa | Estonia | 58.25 | 25.05 | 190 | 1540 |
| Oytla | city | Jarvamaa | Estonia | 58.9419444 | 25.7491667 | 269 | 1306 |
| Oytme | city | Saaremaa | Estonia | 58.5655556 | 22.7391667 | 29 | 835 |
| Oyu | city | Viljandimaa | Estonia | 58.4177778 | 25.9661111 | 180 | 1396 |
| Oyzu | city | Jarvamaa | Estonia | 58.7536111 | 25.565 | 246 | 1313 |
| Oyzu-Vyal'yaotsa | city | Jarvamaa | Estonia | 58.7666667 | 25.5666667 | 239 | 1313 |
| Oyzu-VyalĘžyaotsa | city | Jarvamaa | Estonia | 58.7666667 | 25.5666667 | 239 | 1313 |
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