H
- (Kilkenny) Higginstown
- (Westmeath) Hiskinstown
- (Westmeath) Higginstown
- (Westmeath) Hodgestown
- (Louth) Hackett’s Cross
- (Meath) Heathtown Cross Roads
- (Fingal County) Hynestown
- (Dublin City) Harold's Cross
- (Wicklow) Hempstown
- (Wicklow) Hawkstown
- (Kildare) Haynestown
- (Kilkenny) Highrath
- (Wicklow) Hartstown
- (Wexford) Hermitage
- (Wexford) Hillside
- (Wexford) Hilltown
- (Wexford) Hilltown
- (Wexford) Hollyfort
- (Wicklow) Hollywood
- (Kilkenny) Hugginstown
- (Wexford) Harrylock
- (Wicklow) Humewood
- (Wicklow) Hillbrook Lower
- (Wicklow) Hillbrook Upper
- (Wexford) Hogans Cross Roads
- (Wicklow) Hannigans Bridge
- (Wexford) Hollyfort
- (Wicklow) Highpark Upper
- (Wicklow) Highpark Lower
- (Meath) Hill of Down