K
- (Roscommon) Kingsland
- (Mayo County) Kincon
- (Roscommon) Kinard
- (Mayo County) Kinaff Bridge
- (Mayo County) Kilvine
- (County Galway) Kiltullagh
- (County Galway) Kiltullagh
- (County Galway) Kiltormer
- (Roscommon) Kiltoom
- (County Leitrim) Kiltoghert
- (County Galway) Kiltiernan
- (Roscommon) Kilteevan
- (County Galway) Kiltartan
- (County Galway) Kilreekill
- (County Galway) Kilnalag
- (County Galway) Kilmurvy
- (Mayo County) Kilmovee
- (County Galway) Kilmore
- (Mayo County) Kilmeena
- (County Leitrim) Killegar
- (County Galway) Killower
- (County Galway) Killoscobe
- (County Galway) Killinny
- (County Galway) Killeroran
- (Roscommon) Killeglan
- (County Galway) Killeenaran
- (County Galway) Killeen
- (County Galway) Killeelaun
- (County Galway) Killeany
- (Mayo County) Killavally