- Faris
- Farley
- Farmer
- Farnes
- Farnham
- Farnsworth
- Farnum
- Farr
- Farrar
- Farrell
- Farrer
- Farrimond
- Farrington
- Farrow
- Farwell
- Fassett
- Faulkner
- Fausell
- Fausett
- Faust
- Favor
- Fawcett
- Fawcette
- Fawr
- Fay
- Feagan
- Feake
- Fearing
- Feast
- Feehan
- Fehring
- Feidler
- Feil
- Feires
- Felando
- Felch
- Feliciano
- Felix
- Felker
- Fellows
- Felsenthal
- Felt
- Felton
- Fenley
- Fenn
- Fenner
- Fenton
- Fentress
- Fenwick
- ferch Adam "Fychan"
- ferch Adam ap Hywel ap Thomas Fychan ap Thomas
- ferch Aron
- ferch Bleddyn
- ferch Bledri
- ferch Cadwaladr
- ferch Cadwgon