| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Fort Abbas | city | Punjab | Pakistan | 29.19 | 72.86 | 830 | 47605 |
| Fort Adams | city | Mississippi | United States | 31.09 | -91.55 | 246 | |
| Fort Albany | city | Ontario | Canada | 52.25 | -81.62 | 3 | 302 |
| Fort Albany Airport | airport | 52.20 | -81.70 | 48 | 0 | ||
| Fort Aleksandrovsk | city | Mangghystau | Kazakhstan | 44.51 | 50.26 | -1689 | 115 |
| Fort Aleksandrovskiy | city | Mangghystau | Kazakhstan | 44.51 | 50.26 | -1689 | 115 |
| Fort Allen | city | Pennsylvania | United States | 40.28 | -79.59 | 1174 | |
| Fort Allen Airport | airport | 18.01 | -66.51 | 31 | 0 | ||
| Fort Almonte | city | Lanao del Norte | Philippines | 8.18 | 123.98 | 0 | 11891 |
| Fort Almonto | city | Lanao del Norte | Philippines | 8.18 | 123.98 | 0 | 11891 |
| Fort Amador | city | Panama | Panama | 8.93 | -79.55 | 0 | 34894 |
| Fort Amsterdam | city | Commewijne | Suriname | 5.89 | -55.09 | 3 | 28538 |
| Fort Anakria | city | Georgia | 42.40 | 41.58 | 32 | 4876 | |
| Fort Andrews | city | Massachusetts | United States | 42.30 | -70.93 | 0 | |
| Fort Andriba | city | Mahajanga | Madagascar | -17.60 | 46.93 | 2066 | 745 |
| Fort Anglais | city | Sant | Haiti | 18.83 | -71.93 | 830 | 17135 |
| Fort Ann | city | New York | United States | 43.41 | -73.49 | 180 | |
| Fort Apache | city | Arizona | United States | 33.79 | -109.99 | 5088 | |
| Fort Apache Junction | city | Arizona | United States | 33.79 | -110.00 | 5029 | |
| Fort Archambault | city | Moyen-Chari | Chad | 9.14 | 18.39 | 1161 | 26547 |
| Fort Armyro | city | Kriti | Greece | 35.36 | 24.26 | 157 | 2694 |
| Fort Arthur | city | Cork | Ireland | 51.67 | -8.58 | 262 | 2715 |
| Fort Ashby | city | West Virginia | United States | 39.50 | -78.77 | 830 | |
| Fort Assiniboine | city | Alberta | Canada | 54.33 | -114.77 | 1991 | 0 |
| Fort Atkinson | city | Iowa | United States | 43.14 | -91.93 | 1092 | |
| Fort Atkinson | city | Wisconsin | United States | 42.93 | -88.84 | 830 | |
| Fort Augustus | city | Highland | United Kingdom | 57.13 | -4.68 | 367 | 0 |