- Forkfield
- Formoyle
- Forthill
- Foxford
- Freaghillan Island
- Freaghillanluggagh
- Frehill Island
- Furnace
- Fairymount
- Fairymount
- Fallsollus
- Feevagh
- Feevaghmore
- Figh
- Four Mile House
- Frasnadeffa
- French Park Demesne
- Frenchpark
- Friarshill
- Fuerty
- Fairy Island
- Falduff
- Fallathurteen
- Falleens
- Fallougher
- Falnashammer
- Falnasoogaun
- Farranacardy
- Farranduff
- Farranyharpy