K
- (County Carlow) Kernanstown
- (Kildare) Kilteel
- (Kilkenny) Kilmaganny
- (Meath) Kilcloon
- (Kilkenny) Kells
- (Wicklow) Kilbride
- (Kildare) Kildangan
- (Kildare) Kilmead
- (Meath) Kilmainham Wood
- (Wexford) Kilmore Quay
- (Uíbh Fhailí) Kinnitty
- (Kildare) Kilberry
- (An Longfort) Keenagh
- (Wexford) Kilrane
- (Laois) Killenard
- (Kilkenny) Kilmacow
- (Meath) Kilmessan
- (Meath) Kildakey
- (Louth) Knockbridge
- (Wexford) Kilmuckridge
- (Uíbh Fhailí) Kilcormac
- (Kildare) Kilmeage
- (Wicklow) Kilmacanoge
- (Meath) Kentstown
- (Wicklow) Kilpedder
- (Westmeath) Kilbeggan
- (Westmeath) Killucan
- (Westmeath) Kinnegad
- (Kildare) Kill
- (Kildare) Kilcullen