| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Fort Nassau | city | Upper Demerara-Berbice | Guyana | 5.76 | -57.66 | 59 | 724 |
| Fort National | city | Tizi Ouzou | Algeria | 36.63 | 4.20 | 3349 | 121832 |
| Fort Necessity | city | Louisiana | United States | 32.05 | -91.82 | 55 | |
| Fort Nelson | city | British Columbia | Canada | 58.82 | -122.53 | 1099 | 38 |
| Fort Nelson (Guardian) Heliport | airport | 58.75 | -122.69 | 1292 | 0 | ||
| Fort Nelson (Mile 301) Heliport | airport | 58.81 | -122.73 | 1400 | 0 | ||
| Fort Nelson (Parker Lake) Seaplane Base | airport | 58.83 | -122.90 | 1255 | 0 | ||
| Fort Neu-Amsterdam | city | Commewijne | Suriname | 5.89 | -55.09 | 3 | 28538 |
| Fort New Amsterdam | city | Commewijne | Suriname | 5.89 | -55.09 | 3 | 28538 |
| Fort Niagara Beach | city | New York | United States | 43.27 | -79.04 | 259 | |
| Fort Ninigret | city | Rhode Island | United States | 41.38 | -71.65 | 13 | |
| Fort Nisqually | city | Washington | United States | 47.30 | -122.53 | 200 | |
| Fort Nonsense | city | Virginia | United States | 37.47 | -76.44 | 3 | |
| Fort Norman | city | Northwest Territories | Canada | 64.90 | -125.58 | 55 | 70 |
| Fort Nottingham | city | KwaZulu-Natal | South Africa | -29.42 | 29.90 | 5029 | 935 |
| Fort Nottoway | city | Virginia | United States | 36.89 | -77.42 | 98 |