From Pengorffwysfa, Gwynedd to all cities in Clwyd starting with letter F
- Fedw, Gwynedd
- Felin Puleston, Gwynedd
- Fenns Bank, Gwynedd
- Ffordd las, Gwynedd
- Ffos y go, Gwynedd
- Ffrith, Gwynedd
- Ffynnongroyw, Gwynedd
- Flint, Gwynedd
- Flint Mountain, Gwynedd
- Four Crosses, Gwynedd
- Fron Bache, Gwynedd
- Fron dêg, Gwynedd
- Fron Isaf, Gwynedd
- Froncysyllte, Gwynedd