| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Tacna | city | Libertador General Bernardo O'Higgins | Chile | -34.23 | -70.77 | 1669 | 5384 |
| Tacna | city | Libertador General Bernardo O'Higgins | Chile | -34.65 | -71.13 | 954 | 9638 |
| Tacna | city | Amazonas | Colombia | -2.40 | -70.62 | 291 | 0 |
| Tacna | city | Tacna | Peru | -18.01 | -70.25 | 1935 | 141505 |
| Tacna | city | Madre de Dios | Peru | -10.95 | -69.58 | 1003 | 2003 |
| Tacna | city | Loreto | Peru | -3.47 | -72.61 | 337 | 298 |
| Tacna | city | Huanuco | Peru | -9.00 | -76.04 | 2801 | 1192 |
| Tacna | city | San Martin | Peru | -6.73 | -76.69 | 1669 | 2216 |
| Tacna | city | Arizona | United States | 32.70 | -113.95 | 354 | |
| Tacna Libre | city | Tumbes | Peru | -3.95 | -80.66 | 830 | 3446 |
| Tacnalan | city | Isabela | Philippines | 17.10 | 122.46 | 55 | 2037 |
| Tacnien | city | Pangasinan | Philippines | 16.10 | 120.64 | 830 | 84940 |
| Tacnir | city | Ilocos Norte | Philippines | 18.14 | 120.53 | 82 | 58947 |