| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ochuna | city | | Tanzania, United Rep. of | -1.4 | 34.1333333 | 3894 | 17463 |
| Ofyana | city | | Tanzania, United Rep. of | -4.9166667 | 34.0333333 | 3428 | 5422 |
| Oka | city | | Tanzania, United Rep. of | -5.4166667 | 39.6833333 | 3 | 27620 |
| Okutani | city | | Tanzania, United Rep. of | -5.05 | 39.7 | 0 | 23472 |
| Ol Doinyo Kisale | city | | Tanzania, United Rep. of | -3.7666667 | 36.4166667 | 4996 | 1404 |
| Ol Moloc | city | | Tanzania, United Rep. of | -2.8666667 | 37.1333333 | 5938 | 4185 |
| Ol Molog | city | | Tanzania, United Rep. of | -2.8666667 | 37.1333333 | 5938 | 4185 |
| Olala | city | | Tanzania, United Rep. of | -2.5333333 | 35.5666667 | 4671 | 966 |
| Olalaa | city | | Tanzania, United Rep. of | -2.5333333 | 35.5666667 | 4671 | 966 |
| Old Gumbiro | city | | Tanzania, United Rep. of | -10 | 35.4666667 | 2755 | 1890 |
| Old Kasanga | city | | Tanzania, United Rep. of | -8.65 | 35.15 | 6122 | 4835 |
| Old Kiomboi | city | | Tanzania, United Rep. of | -4.2666667 | 34.3666667 | 5013 | 6622 |
| Old Langenburg | city | | Tanzania, United Rep. of | -9.5666667 | 34.1333333 | 1564 | 9772 |
| Old Mikindani | city | | Tanzania, United Rep. of | -10.2833333 | 40.1166667 | 59 | 9212 |
| Old Moshi | city | | Tanzania, United Rep. of | -3.3166667 | 37.4 | 3251 | 54326 |
| Old Negezi | city | | Tanzania, United Rep. of | -3.65 | 33.6666667 | 3848 | 10623 |
| Old Shinyanga | city | | Tanzania, United Rep. of | -3.55 | 33.4 | 3894 | 10626 |
| Oldeani | city | | Tanzania, United Rep. of | -3.35 | 35.55 | 4849 | 6617 |
| Oldinyo Kisale | city | | Tanzania, United Rep. of | -3.7666667 | 36.4166667 | 4996 | 1404 |
| Ole | city | | Tanzania, United Rep. of | -5.1833333 | 39.8166667 | 3 | 43317 |
| Olmotoni | city | | Tanzania, United Rep. of | -3.3166667 | 36.6333333 | 4927 | 45614 |
| Olmotonyi | city | | Tanzania, United Rep. of | -3.3166667 | 36.6333333 | 4927 | 45614 |
| Olturoto | city | | Tanzania, United Rep. of | -3.3333333 | 36.6833333 | 4940 | 49789 |
| Omari Nyama | city | | Tanzania, United Rep. of | -9.4 | 36.7 | 1571 | 1120 |
| Omukagando | city | Kagera Region | Tanzania, United Rep. of | -1.2594444 | 30.9505556 | 4330 | 9161 |
| Omuruyanza | city | Kagera Region | Tanzania, United Rep. of | -1.5808333 | 31.1322222 | 4688 | 9166 |
| Ovada | city | | Tanzania, United Rep. of | -5.1833333 | 35.2333333 | 4898 | 4664 |
| Owero | city | | Tanzania, United Rep. of | -8.6166667 | 33.8666667 | 3530 | 5502 |
| Oyster Bay | city | | Tanzania, United Rep. of | -6.7833333 | 39.2833333 | 0 | 152095 |
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