- Four Mile Bridge
- Fryars Bay
- Fleur-de-lis
- Felindre
- Ffarmers
- Foelgastell
- Four Roads
- Felindre
- Felinfach
- Ferwig
- Ffair-Rhos
- Ffos-y-ffîn
- Ffostrasol
- Furnace
- Ffynnongroyw
- Fairbourne
- Felin Fach
- Felindre
- Felinfoel
- Felingwmuchaf
- Ferryside
- Ffair-fâch
- Ffald-y-Brenin
- Ffestiniog
- Fforest
- Ffrith
- Ffynnon-ddrain
- Fishguard
- Five Roads
- Flemingston