- Fir Villa
- Firwood
- Fischer Island
- Fisher
- Fishers Corner
- Fitzpatrick Island
- Five Corners
- Five Foot Rock
- Five Islands
- Flag Island
- Flat Black Rock
- Flat Rock
- Flora
- Flynn
- Foley Springs
- Folkenberg
- Foots Creek
- Fords Mill
- Forest Crossing
- Forfar
- Fort Hill Census Designated Place
- Fort Klamath
- Fort Rock
- Fort Stevens
- Fortune Branch
- Foss
- Foster
- Fountain Rock
- Four Cabin Corner
- Four Corners