- Kanturk
- Keadew
- Keenagh
- Kells
- Kentstown
- Kernanstown
- Kerrykeel
- Kilbeggan
- Kilberry
- Kilbride
- Kilbrin
- Kilbrittain
- Kilcar
- Kilcloon
- Kilcoole
- Kilcormac
- Kilcrohane
- Kilcummin Farmhill
- Kildalkey
- Kildangan
- Kildavin
- Kildorrery
- Kildrum
- Kilfinnane
- Kilflynn
- Kilgarvan
- Kilkelly
- Kilkishen
- Kill
- Kill
- Killadysert
- Killavullen
- Killeagh
- Killeigh
- Killenard
- Killenaule
- Killeshandra
- Killester
- Killimor
- Killinierin
- Killumney
- Killurin
- Killygordon
- Kilmacanoge
- Kilmacow
- Kilmacrenan
- Kilmacthomas
- Kilmaganny
- Kilmaine
- Kilmainham Wood
- Kilmallock
- Kilmead
- Kilmeaden
- Kilmeage
- Kilmessan
- Kilmihil
- Kilmore Quay
- Kilmurry
- Kilmyshall
- Kilnaleck
- Kilpedder
- Kilquade
- Kilrane
- Kilsheelan
- Kiltamagh
- Kilteely
- Kilworth
- Kingscourt
- Kinlough
- Kinnegad
- Kinnitty
- Kinsaley
- Kinsealy-Drinan
- Kinvarra
- Knightstown
- Knock
- Knockananna
- Knockcroghery
- Knockglass
- Knocklong
- Knocklyon
- Knocknagree
- Knocknalower
- Knockraha
- Knocktopher
