K
- (County Waterford) Knocknahoola
- (County Waterford) Keane’s Cross Roads
- (County Waterford) Kilmarry
- (County Waterford) Keereen
- (County Waterford) Kilgrovan
- (County Waterford) Kilminain
- (County Waterford) Kilrush
- (County Waterford) Killadangan
- (County Waterford) Knockvoolahan
- (County Waterford) Kilminnin
- (County Waterford) Killelton
- (County Waterford) Kilmarrin
- (County Waterford) Kilduane
- (County Waterford) Knockaunagloon
- (County Waterford) Kilnafrehan
- (County Waterford) Kilgobnet
- (County Waterford) Knockroe
- (County Waterford) Knockalahara
- (County Waterford) Knocknaskagh Cross Roads
- (County Waterford) Knocknanask
- (County Waterford) Knockboy
- (County Tipperary) Knockardbounce
- (County Tipperary) Knockatullane
- (County Waterford) Knockmeal
- (County Waterford) Knockacomortish
- (County Waterford) Kilclooney
- (County Waterford) Knockanacullin
- (County Waterford) Kilrossanty
- (County Waterford) Kealfoun
- (County Waterford) Kilnagrange Bridge