K
- (Mayo County) Knocks
- (Mayo County) Kilgarriff
- (Mayo County) Killoveeny
- (Mayo County) Knockavilla
- (Mayo County) Killeen
- (Mayo County) Killedan
- (Mayo County) Knockbrack
- (Mayo County) Knocknaskeagh
- (Mayo County) Kincon
- (Mayo County) Killeen
- (Mayo County) Knockroe
- (Mayo County) Kilcolman
- (Mayo County) Knockbaun
- (Mayo County) Kilgarriff West
- (Mayo County) Killeen
- (Mayo County) Killunagher
- (Mayo County) Knocknaseagh
- (Mayo County) Knockmanagh
- (Mayo County) Killaturly
- (Mayo County) Knockbrack
- (Mayo County) Kilcasel
- (Mayo County) Killaclare
- (Sligo) Kiltycreen
- (Sligo) Kilstraghlan
- (Sligo) Knockatelly
- (Sligo) Knocknagore
- (Sligo) Kildarganmore
- (Sligo) Kileen
- (Sligo) Knockbrack
- (Sligo) Killeens