| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obadaella | city | Uva | Sri Lanka | 6.81 | 80.98 | 5104 | 89887 |
| Obadakumbura | city | Uva | Sri Lanka | 7.15 | 81.25 | 954 | 11209 |
| Obbegoda | city | Uva | Sri Lanka | 6.92 | 81.35 | 830 | 11951 |
| Obbekota | city | Uva | Sri Lanka | 6.92 | 81.35 | 830 | 11951 |
| Oddambegama | city | Uva | Sri Lanka | 6.95 | 81.36 | 830 | 7673 |
| Ohiya | city | Uva | Sri Lanka | 6.82 | 80.84 | 6056 | 51309 |
| Okkampitiya | city | Uva | Sri Lanka | 6.75 | 81.31 | 830 | 11369 |
| Okkampitiya Govi Janapadaya I | city | Uva | Sri Lanka | 6.73 | 81.33 | 830 | 11784 |
| Okkampitiya Govi Janapadaya II | city | Uva | Sri Lanka | 6.72 | 81.33 | 830 | 10519 |
| Okkampitiya Govi Janapadaya III | city | Uva | Sri Lanka | 6.71 | 81.34 | 830 | 9765 |
| Okkampitiya Ihalagama | city | Uva | Sri Lanka | 6.75 | 81.31 | 830 | 11369 |
| Okurawa | city | Uva | Sri Lanka | 6.76 | 81.19 | 830 | 9297 |
| Okuruwawa | city | Uva | Sri Lanka | 6.76 | 81.19 | 830 | 9297 |
| Oliyamandiya | city | Uva | Sri Lanka | 7.00 | 81.06 | 2509 | 86937 |
| Orukengala | city | Uva | Sri Lanka | 6.56 | 80.98 | 830 | 5881 |
| Osillakivula | city | Uva | Sri Lanka | 6.90 | 81.21 | 1669 | 20136 |
| Oyabodayaya | city | Uva | Sri Lanka | 6.98 | 81.24 | 1200 | 19605 |