| Forpronu | United Nations Protection Force |
| Forpus | Forpus |
| Forrest Gump | Forrest Gump |
| Fors de Béarn | Fors de Bearn |
| Fors de Valence | Furs of Valencia |
| Forseti | Forseti |
| Forst-Längenbühl | Forst-Längenbühl |
| Forster | Forster |
| Forstérite | Forsterite |
| Forsvarets Etterretningstjeneste | Norwegian Intelligence Service |
| Forsythe Racing | Forsythe Championship Racing |
| forsythia | forsythia |
| fort | robust |
| Fort Augustus | Fort Augustus |
| Fort Boyard | Fort Boyard |
| Fort Capuzzo | Fort Capuzzo |
| Fort Coligny | Fort Coligny |
| fort comme un Turc | strong as an ox |
| Fort de Bahla | Bahla Fort |
| Fort de Bohus | Bohus Fortress |
| Fort de Breendonk | Breendonk |
| Fort de Carlsten | Carlsten |
| Fort de Joux | Fort de Joux |
| Fort de Lahore | Lahore Fort |
| Fort de Nya Elfsborg | Nya Elfsborg |
| Fort de Rohtas | Rohtas Fort |
| Fort de Vaux | Fort Vaux |
| Fort du Trocadéro | Battle of Trocadero |
| Fort en | Good at |
| Fort Erie | Fort Erie |
| Fort Hunter | Fort Hunter |
| Fort Laramie | Fort Laramie |
| Fort Michillimakinac | Fort Michilimackinac |
| Fort Morgan | Fort Morgan |
| Fort Orange | Fort Orange |
| Fort Peck | Fort Peck |
| fort probablement | most probably |
