| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Yo | city | Southern Province | Sierra Leone | 7.5916667 | -12.8525 | 3 | 1977 |
| Yoabu | city | Eastern Province | Sierra Leone | 8.45 | -11.0333333 | 1177 | 25193 |
| Yobohun | city | Southern Province | Sierra Leone | 8.1333333 | -11.55 | 492 | 5521 |
| Yof | city | Northern Province | Sierra Leone | 8.4236111 | -13.0625 | 91 | 8696 |
| Yogbodu | city | Eastern Province | Sierra Leone | 8.4833333 | -10.6333333 | 954 | 16092 |
| Yogbofo | city | Southern Province | Sierra Leone | 7.8666667 | -12.8336111 | 85 | 3154 |
| Yogomaia | city | Northern Province | Sierra Leone | 9.5833333 | -11.5666667 | 1519 | 2380 |
| Yogomusaia | city | Northern Province | Sierra Leone | 9.0333333 | -11.2166667 | 1394 | 2402 |
| Yoka | city | Eastern Province | Sierra Leone | 7.7 | -11.3666667 | 485 | 7624 |
| Yoka-iri | city | Northern Province | Sierra Leone | 9.4666667 | -12.6 | 246 | 8672 |
| Yoke | city | Southern Province | Sierra Leone | 7.8161111 | -12.4830556 | 65 | 4216 |
| Yoki | city | Southern Province | Sierra Leone | 7.4769444 | -12.5283333 | 3 | 2309 |
| Yokodu | city | Eastern Province | Sierra Leone | 8.7833333 | -11.0333333 | 1249 | 26660 |
| Yomadu | city | Eastern Province | Sierra Leone | 8.7333333 | -11.1 | 1148 | 26664 |
| Yomadu | city | Eastern Province | Sierra Leone | 8.65 | -10.5 | 1017 | 13163 |
| Yomadugu | city | Northern Province | Sierra Leone | 9.5666667 | -11.4333333 | 1499 | 2380 |
| Yomanja | city | Eastern Province | Sierra Leone | 8.6 | -11.3166667 | 1010 | 26671 |
| Yomankoro | city | Northern Province | Sierra Leone | 8.9833333 | -10.8833333 | 1486 | 13379 |
| Yombohun | city | Eastern Province | Sierra Leone | 8.45 | -11.3 | 938 | 13076 |
| Yombohun | city | Eastern Province | Sierra Leone | 8.4666667 | -11.3 | 846 | 16697 |
| Yomboia | city | Eastern Province | Sierra Leone | 8.45 | -11.1166667 | 1043 | 26683 |
| Yomboro | city | Northern Province | Sierra Leone | 9.5166667 | -12.65 | 239 | 6369 |
| Yomboro Duladi | city | Northern Province | Sierra Leone | 9.5 | -12.65 | 246 | 7158 |
| Yomboro Konta | city | Northern Province | Sierra Leone | 9.5166667 | -12.65 | 239 | 6369 |
| Yomforia | city | Northern Province | Sierra Leone | 9 | -13.0833333 | 134 | 8849 |
| Yomolo | city | Northern Province | Sierra Leone | 9.8 | -11.7166667 | 1499 | 2380 |
| Yomudu | city | Eastern Province | Sierra Leone | 8.7333333 | -11.1 | 1148 | 26664 |
| Yon | city | Southern Province | Sierra Leone | 8.2 | -12.7833333 | 88 | 4421 |
| Yondu | city | Southern Province | Sierra Leone | 8.0175 | -12.8672222 | 45 | 3861 |
| Yonfon | city | Northern Province | Sierra Leone | 9.5833333 | -12.25 | 255 | 5166 |
| Yongaro | city | Northern Province | Sierra Leone | 9.2166667 | -11.9166667 | 613 | 5171 |
| Yongoima | city | Eastern Province | Sierra Leone | 8.2666667 | -11.2 | 1364 | 7686 |
| Yongoro | city | Northern Province | Sierra Leone | 8.59 | -13.1988889 | 101 | 6868 |
| Yongro | city | Northern Province | Sierra Leone | 8.59 | -13.1988889 | 101 | 6868 |
| Yoni | city | Southern Province | Sierra Leone | 8.2 | -12.7833333 | 88 | 4421 |
| Yoni | city | Southern Province | Sierra Leone | 7.4769444 | -12.5283333 | 3 | 2309 |
| Yoni | city | Southern Province | Sierra Leone | 7.365 | -12.0772222 | 29 | 3780 |
| Yoni | city | Southern Province | Sierra Leone | 7.45 | -11.9833333 | 144 | 3783 |
| Yoni | city | Southern Province | Sierra Leone | 7.7875 | -11.9505556 | 177 | 5527 |
| Yoni | city | Southern Province | Sierra Leone | 8.25 | -11.95 | 229 | 4443 |
| Yoni | city | Northern Province | Sierra Leone | 8.8333333 | -11.8833333 | 357 | 5386 |
| Yoni | city | Southern Province | Sierra Leone | 7.35 | -11.7166667 | 259 | 4373 |
| Yoni | city | Eastern Province | Sierra Leone | 8.0666667 | -11.3 | 541 | 7580 |
| Yonibana | city | Northern Province | Sierra Leone | 8.4447222 | -12.245 | 173 | 5374 |
| Yonkonia | city | Northern Province | Sierra Leone | 9.8 | -11.1833333 | 1528 | 2372 |
| Yoombarmo | city | Eastern Province | Sierra Leone | 8.2833333 | -10.9166667 | 977 | 7530 |
| Yoria | city | Northern Province | Sierra Leone | 9.0333333 | -11.35 | 1469 | 2385 |
| York | city | Western Area | Sierra Leone | 8.2855556 | -13.18 | 0 | 3569 |
| York | city | Southern Province | Sierra Leone | 7.5383333 | -12.4630556 | 45 | 2051 |
| Yoro | city | Eastern Province | Sierra Leone | 7.7333333 | -10.7 | 492 | 4827 |
| Yorondo | city | Northern Province | Sierra Leone | 9.1666667 | -11.05 | 2191 | 2380 |
| Yovohun | city | Eastern Province | Sierra Leone | 7.9244444 | -11.3755556 | 413 | 7226 |
| Yovuhun | city | Eastern Province | Sierra Leone | 7.9244444 | -11.3755556 | 413 | 7226 |
| Yowema | city | Eastern Province | Sierra Leone | 8.0833333 | -10.6333333 | 839 | 7351 |
| Yoya | city | Eastern Province | Sierra Leone | 7.9322222 | -10.7647222 | 839 | 7434 |
| Yoyema | city | Southern Province | Sierra Leone | 8.1666667 | -12.5 | 236 | 4421 |
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