K
- (Mayo County) Knockysprickaun
- (Mayo County) Knocknaboley
- (Mayo County) Knocknatinnyweel
- (Mayo County) Kiltyroe
- (Mayo County) Knockmuinard
- (Mayo County) Knockroosky
- (Mayo County) Killadeen
- (Mayo County) Killard
- (Mayo County) Knockanour
- (Mayo County) Knockakeery
- (Mayo County) Knocknaveagh
- (Mayo County) Knockmore
- (Mayo County) Kilbrenan
- (Mayo County) Kilnageer
- (Mayo County) Kilknock
- (Mayo County) Kilmacrade
- (Mayo County) Keelkill
- (Mayo County) Keeloges
- (Mayo County) Knocksaxon
- (Mayo County) Killeen
- (Mayo County) Knocknamoghalaun
- (Mayo County) Knockaraha
- (Galway City) Knocknacarra
- (Mayo County) Killylea
- (Mayo County) Kilmannin
- (Mayo County) Killeen
- (Mayo County) Knockbrack
- (Mayo County) Kilmore
- (Mayo County) Knocklanny
- (Mayo County) Knockmullin