- Frederick VI
- Frederick William
- Frederick William I
- Frederick William II
- Frederick William III
- Frederick William IV
- Fredericton
- Frederiksberg
- free
- free
- free agent
- free alongside ship
- free alongside vessel
- free-associate
- free association
- freebase
- freebee
- freebie
- freebies
- freeboard
- freeboard deck
- freeboot
- freebooter
- freeborn
- free central placentation