| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| On Dwei | city | Chin State | Burma | 21.25 | 93.3 | 2027 | 1134 |
| On-et | city | Shan State | Burma | 21.05 | 96.65 | 3697 | 3252 |
| On-hlut | city | Mandalay Division | Burma | 22.2333333 | 96.3166667 | 574 | 22896 |
| On-ma-thi | city | Shan State | Burma | 22.2333333 | 96.6666667 | 2240 | 4247 |
| Onbaing | city | Sagaing Division | Burma | 23.0166667 | 96.05 | 462 | 3098 |
| Onbauk | city | Sagaing Division | Burma | 22.5833333 | 95.8333333 | 400 | 35561 |
| Onbaung | city | Kachin State | Burma | 25.1333333 | 96.6833333 | 793 | 7239 |
| Onbet | city | Sagaing Division | Burma | 25.2 | 95.1 | 416 | 1736 |
| Onbin | city | Ayeyarwady Division | Burma | 15.8 | 95.1333333 | 22 | 13447 |
| Onbin | city | Ayeyarwady Division | Burma | 17.5666667 | 95.45 | 19 | 28896 |
| Onbin | city | Ayeyarwady Division | Burma | 16.3 | 95.7 | 42 | 34520 |
| Onbin | city | Mandalay Division | Burma | 20.25 | 96.2833333 | 600 | 11205 |
| Onbin | city | | Burma | 18.8166667 | 96.4333333 | 55 | 16936 |
| Onbin | city | | Burma | 18.8333333 | 96.4333333 | 55 | 16936 |
| Onbin | city | | Burma | 17.8166667 | 96.9833333 | 118 | 4191 |
| Onbindaw | city | Mandalay Division | Burma | 21.2166667 | 95.45 | 495 | 34791 |
| Onbingon | city | Sagaing Division | Burma | 22.6166667 | 95.7 | 334 | 37366 |
| Onbingon | city | Sagaing Division | Burma | 22.85 | 95.8166667 | 583 | 16124 |
| Onbingwin | city | | Burma | 14.6166667 | 97.9833333 | 160 | 4059 |
| Onbingwin | city | | Burma | 12.0666667 | 99.0166667 | 32 | 952 |
| Onbingyan | city | Mandalay Division | Burma | 20.6666667 | 95.95 | 606 | 21841 |
| Onbingyan | city | Mandalay Division | Burma | 21.7333333 | 96.1 | 229 | 34517 |
| Onbingyaung | city | Kayin State | Burma | 18.85 | 96.7166667 | 1784 | 2060 |
| Onbinhin | city | Sagaing Division | Burma | 24.6166667 | 94.6833333 | 298 | 1754 |
| Onbinkwin | city | | Burma | 14.6166667 | 97.9833333 | 160 | 4059 |
| Onbinkwin | city | | Burma | 13.95 | 98.3333333 | 29 | 8461 |
| Onbinkwin | city | | Burma | 12.1 | 98.85 | 91 | 1342 |
| Onbinmyaung | city | | Burma | 18.2333333 | 96.9166667 | 593 | 6444 |
| Onbinywa | city | | Burma | 18.8166667 | 96.4333333 | 55 | 16936 |
| Onbinzeik | city | Sagaing Division | Burma | 22.3166667 | 95.0166667 | 328 | 16617 |
| Onbinzu | city | Ayeyarwady Division | Burma | 16.4833333 | 95.3666667 | 26 | 35597 |
| Onbinzu | city | Ayeyarwady Division | Burma | 16.2 | 95.4 | 59 | 19367 |
| Onbinzu | city | Ayeyarwady Division | Burma | 16.6833333 | 95.6 | 42 | 52943 |
| Onbinzu | city | Ayeyarwady Division | Burma | 16.5333333 | 95.8 | 49 | 32364 |
| Onbinzu | city | | Burma | 17.2166667 | 95.8833333 | 52 | 29615 |
| Onbinzu | city | | Burma | 17.7166667 | 96.95 | 147 | 6218 |
| Onbwedaw | city | | Burma | 20.7666667 | 94.75 | 170 | 33481 |
| Onbyin | city | Sagaing Division | Burma | 23.8666667 | 95.3 | 757 | 3931 |
| Onbyinkye | city | Sagaing Division | Burma | 23.8666667 | 95.3 | 757 | 3931 |
| Onbyit | city | Sagaing Division | Burma | 23.8666667 | 95.7 | 2047 | 8797 |
| Onchaung | city | Rakhine State | Burma | 19.7166667 | 93.45 | 383 | 1954 |
| Ondabin | city | Shan State | Burma | 20.65 | 96.9333333 | 2887 | 15115 |
| Ondaing | city | Shan State | Burma | 20.25 | 96.9833333 | 3287 | 15432 |
| Ondan | city | Sagaing Division | Burma | 22.95 | 96.2333333 | 2910 | 9366 |
| Ondau | city | Sagaing Division | Burma | 22.0166667 | 95.8333333 | 328 | 31722 |
| Ondaw | city | Rakhine State | Burma | 19.7333333 | 93.4333333 | 75 | 1954 |
| Ondaw | city | Rakhine State | Burma | 19.4 | 93.5166667 | 29 | 11941 |
| Ondaw | city | | Burma | 21.8 | 94.1166667 | 967 | 6878 |
| Ondaw | city | | Burma | 21.45 | 94.5166667 | 456 | 8590 |
| Ondaw | city | | Burma | 20.6 | 94.5333333 | 259 | 15397 |
| Ondaw | city | | Burma | 20.3 | 94.75 | 144 | 15992 |
| Ondaw | city | Sagaing Division | Burma | 23.0333333 | 95.4833333 | 472 | 9327 |
| Ondaw | city | Ayeyarwady Division | Burma | 17.4833333 | 95.5333333 | 55 | 34925 |
| Ondaw | city | Sagaing Division | Burma | 22.0166667 | 95.8333333 | 328 | 31722 |
| Ondaw | city | | Burma | 13.1333333 | 98.6166667 | 45 | 6979 |
| Ondawgan | city | | Burma | 11.2833333 | 98.75 | 36 | 887 |
| Ondawzu | city | Ayeyarwady Division | Burma | 17.1 | 95.0833333 | 36 | 50659 |
| Ondazin | city | Mandalay Division | Burma | 22.1 | 96 | 193 | 100115 |
| Ondin | city | Sagaing Division | Burma | 22.65 | 95.25 | 344 | 13539 |
| Ondok | city | Sagaing Division | Burma | 24.35 | 94.8666667 | 459 | 3547 |
| Ondon | city | Mandalay Division | Burma | 20.8833333 | 95.6166667 | 1089 | 45639 |
| Ondon | city | | Burma | 17.6166667 | 95.95 | 108 | 18299 |
| Ondwe | city | | Burma | 20.1166667 | 95.1333333 | 190 | 24957 |
| Ong | city | Chin State | Burma | 21.3166667 | 93.7666667 | 4199 | 1288 |
| Ong Pao | city | Shan State | Burma | 21.1833333 | 97.15 | 2673 | 2146 |
| Ongaing | city | Sagaing Division | Burma | 22.9333333 | 96.5 | 3736 | 17604 |
| Onghkok | city | Shan State | Burma | 22.4833333 | 97.2666667 | 1558 | 4277 |
| Onghkök | city | Shan State | Burma | 22.4833333 | 97.2666667 | 1558 | 4277 |
| Onghsi | city | Shan State | Burma | 22.2666667 | 97.45 | 2739 | 3547 |
| Ongmu | city | Shan State | Burma | 21.1666667 | 97.6 | 4452 | 4218 |
| Ongon | city | Ayeyarwady Division | Burma | 17.9833333 | 95.1 | 82 | 21761 |
| Ongon | city | Ayeyarwady Division | Burma | 17.9666667 | 95.2833333 | 49 | 21094 |
| Ongon | city | Ayeyarwady Division | Burma | 17.6166667 | 95.45 | 19 | 39968 |
| Ongon | city | | Burma | 17.7666667 | 95.5 | 16 | 11911 |
| Ongon | city | Mandalay Division | Burma | 21.3333333 | 96.1666667 | 288 | 24205 |
| Ongsang | city | Shan State | Burma | 22.0166667 | 97.4 | 2171 | 2541 |
| Ongwe | city | Shan State | Burma | 21.5 | 96.9 | 2158 | 3155 |
| Ongwe Zayat | city | Sagaing Division | Burma | 22.7833333 | 94.4333333 | 774 | 3855 |
| Ongyan | city | Sagaing Division | Burma | 22.7166667 | 95.2833333 | 351 | 13156 |
| Ongyan | city | Kayin State | Burma | 19.2833333 | 96.2666667 | 259 | 8824 |
| Ongyaung | city | Ayeyarwady Division | Burma | 17.1166667 | 94.5 | 65 | 20859 |
| Ongyaw | city | Mandalay Division | Burma | 21.8833333 | 96.2333333 | 285 | 23514 |
| Ongyaw | city | Mandalay Division | Burma | 21.7833333 | 96.7166667 | 2785 | 14842 |
| Ongyi | city | | Burma | 21.2 | 94.8333333 | 124 | 33175 |
| Ongyin | city | Mandalay Division | Burma | 21.1333333 | 95.2833333 | 672 | 22703 |
| Ongyiwa | city | Shan State | Burma | 20.4166667 | 96.8833333 | 2814 | 13439 |
| Onhmin | city | Sagaing Division | Burma | 21.8833333 | 95.5 | 209 | 19537 |
| Onhmin | city | Sagaing Division | Burma | 24.5 | 95.95 | 764 | 4143 |
| Onhmin | city | Sagaing Division | Burma | 21.65 | 95.9666667 | 206 | 27437 |
| Onhmin | city | Sagaing Division | Burma | 22.7833333 | 96.0833333 | 1184 | 3659 |
| Onhmin | city | Mandalay Division | Burma | 20.65 | 96.15 | 498 | 21672 |
| Onhmin | city | Mandalay Division | Burma | 22.3 | 96.2 | 226 | 22813 |
| Onhminbauk | city | Shan State | Burma | 20.65 | 96.7666667 | 4222 | 9027 |
| Onhmingon | city | Sagaing Division | Burma | 23.7166667 | 95.7833333 | 967 | 7497 |
| Onhnauk | city | Sagaing Division | Burma | 21.9166667 | 94.7166667 | 620 | 9528 |
| Onhne | city | | Burma | 18.5666667 | 96.4 | 98 | 15413 |
| Onhne | city | | Burma | 17.1 | 96.5833333 | 13 | 28051 |
| Onhnebin | city | | Burma | 17.4666667 | 96.1166667 | 150 | 17116 |
| Onhnebin | city | | Burma | 18.25 | 96.6166667 | 19 | 13077 |
| Onhnebok | city | Sagaing Division | Burma | 22.8333333 | 94.7333333 | 236 | 5151 |
| Onhnebok | city | Sagaing Division | Burma | 21.7166667 | 95.2666667 | 193 | 34578 |
| Onhnebok | city | Sagaing Division | Burma | 22.4666667 | 95.7 | 255 | 26692 |
| Onhnebok | city | Sagaing Division | Burma | 22.2333333 | 95.9166667 | 239 | 23123 |
| Onhnechaung | city | Mandalay Division | Burma | 21.2833333 | 95.1 | 187 | 27794 |
| Onhnegon | city | | Burma | 17.1 | 96.25 | 22 | 17175 |
| Onhnegyawdan | city | | Burma | 18.2 | 95.6 | 72 | 18257 |
| Onhnegyin | city | Sagaing Division | Burma | 23.6333333 | 95.3666667 | 639 | 6846 |
| Onhneye | city | | Burma | 18.2 | 96.5666667 | 78 | 10603 |
| Onhnezan | city | | Burma | 20.1333333 | 94.5666667 | 383 | 14268 |
| Onhnèbin | city | | Burma | 18.25 | 96.6166667 | 19 | 13077 |
| Onhnèbok | city | Sagaing Division | Burma | 21.7166667 | 95.2666667 | 193 | 34578 |
| Onhnèbok | city | Sagaing Division | Burma | 22.4666667 | 95.7 | 255 | 26692 |
| Onhnèbok | city | Sagaing Division | Burma | 22.2333333 | 95.9166667 | 239 | 23123 |
| Onhnèye | city | | Burma | 18.2 | 96.5666667 | 78 | 10603 |
| Onhnēgon | city | | Burma | 17.1 | 96.25 | 22 | 17175 |
| Onka-yaing | city | Shan State | Burma | 21.4666667 | 96.65 | 1827 | 2268 |
| Onkon | city | Ayeyarwady Division | Burma | 17.35 | 95.3666667 | 39 | 29505 |
| Onkrengkhi | city | Kayin State | Burma | 16.15 | 98.7833333 | 1407 | 610 |
| Onletkauk | city | Mandalay Division | Burma | 21.65 | 96.0333333 | 229 | 22545 |
| Onlinzeik | city | | Burma | 18.4833333 | 96.65 | 52 | 8710 |
| Onmadwin | city | Sagaing Division | Burma | 23.7666667 | 95.45 | 997 | 6959 |
| Onmakwe | city | Shan State | Burma | 22.9833333 | 96.9 | 4032 | 3716 |
| Onnigyun | city | Rakhine State | Burma | 19.55 | 93.8666667 | 9 | 2569 |
| Onpanghka | city | Kachin State | Burma | 25.05 | 96.3 | 554 | 2244 |
| Onsansaing | city | Kachin State | Burma | 24.85 | 96.3333333 | 954 | 3525 |
| Ontabin | city | Mon State | Burma | 16.6508333 | 97.5425 | 39 | 43109 |
| Ontabu | city | Sagaing Division | Burma | 22.9166667 | 96.0833333 | 1099 | 3099 |
| Ontalang | city | Shan State | Burma | 22.8666667 | 96.9166667 | 4783 | 3997 |
| Ontaláng | city | Shan State | Burma | 22.8666667 | 96.9166667 | 4783 | 3997 |
| Ontha | city | Sagaing Division | Burma | 24.1666667 | 94.85 | 554 | 3565 |
| Onthigwe | city | Mandalay Division | Burma | 20.4333333 | 96.0833333 | 695 | 14394 |
| Onwa | city | | Burma | 20.8 | 94.2 | 1026 | 2584 |
| Onzaw | city | | Burma | 19.7 | 94.4166667 | 2421 | 6389 |
| Onzinkwin | city | | Burma | 19.2666667 | 95.3 | 203 | 12135 |
| Onzon | city | Sagaing Division | Burma | 22.8166667 | 96.1 | 1394 | 3843 |
|
|