- Ightermurragh
- Ileclash
- Illane
- Illanebeg
- Illaunaclaggin
- Illaunamadan
- Illaunawhilla
- Illaunbaun
- Illaunbeg
- Illaunbweeheen
- Illaundrane
- Illaunhobert
- Illaunimmil
- Illaunleagh
- Illaunloo
- Illaunmore
- Illaunmore
- Illaunnabarnagh
- Illaunnacogha
- Illaunnacusha
- Illaunnaweelaun
- Illaunonearaun
- Illaunsillagh
- Illaunslea
- Illaunstookagh
- Illauntannig
- Inagh
- Inane
- Inch
- Inch