Select city
- Walshestown, Sligeach
- Walshisland, Uíbh Fhailí
- Walshstown, County Carlow
- Walshtown, County Cork
- Walterstown, An Clár
- Walterstown, Cill Dara
- Walterstown, County Cork
- Walterstown, An Mhí
- Walterstown, Lú
- Ward, Baile Átha Cliath
- Ward's Town, County Donegal
- Wardtown, County Donegal
- Warner's Cross Roads, County Cork
- Washington, Cill Dara
- Watch House Cross Roads, Cill Dara
- Watch House Village, Loch Garman
- Waterfall, County Cork
- Waterford, Port Láirge
- Watergrasshill, County Cork
- Waterloo, An Cabhán
- Waterloo Bridge, Cill Mhantáin
- Waterville, County Limerick
- Waterville, Ciarraí
- Wattle Cross Roads, Loch Garman
- Weatherstown, Cill Chainnigh
- Welchtown, County Donegal
- Wellingtonbridge, Loch Garman
- West Cove, Ciarraí
- West Village, County Cork
- Westport, Maigh Eo
- Westtown, Port Láirge
- Wexford, Loch Garman
- Wheelahans Bridge, Laois
- Wheelam Cross Roads, Cill Dara
- Whelan's Bridge, Port Láirge
- White Castle, County Donegal
- White Cross Roads, Loch Garman
- White Gate Cross Roads, Ciarraí
- White Hall, Cill Mhantáin
- White's Bridge, An Clár
- White's Cross, County Cork
- Whitebog, Laois
- Whitechurch, Cill Chainnigh
- Whitechurch, Loch Garman
- Whitechurch, Port Láirge
- Whitechurch, County Cork
- Whitechurch, Baile Átha Cliath
- Whitechurch, Cill Dara
- Whitefield, County Donegal
- Whiteford, Uíbh Fhailí
- Whitegate, An Clár
- Whitehall, Ros Comáin
- Whitehill, County Donegal
- Whiteland Cross Roads, County Tipperary
- Whites Town, Lú
- Whitestown, Baile Átha Cliath
- Whitestown Cross Roads, Port Láirge
- Whitewell, County Cork
- Wicklow, Cill Mhantáin
- Wilkinstown, An Mhí
- Wilkinstown Cross Roads, Loch Garman
- Willbrook, Baile Átha Cliath
- Willbrook, An Clár
- Williamstown, County Galway
- Williamstown Cross Roads, Port Láirge
- Williamsville, Baile Átha Cliath
- Willsborough, Sligeach
- Wilson's Bridge, Cill Dara
- Windmill Cross Roads, Cill Dara
- Windy Arbour, Baile Átha Cliath
- Windy Harbour, An Mhí
- Winterhill, County Donegal
- Wolfhill, Laois
- Wood Village, Loch Garman
- Woodenboley, County Carlow
- Woodenbridge, Cill Mhantáin
- Woodenbridge, Uíbh Fhailí
- Woodfield, County Cork
- Woodfield, Cill Mhantáin
- Woodfield, Laois
- Woodfield Bridge, An Clár
- Woodford, County Galway
- Woodford, County Leitrim
- Woodfort, An Mhí
- Woodhouse, Port Láirge
- Woodhouse Cross Roads, Port Láirge
- Woodlands, Cill Dara
- Woodlands, Baile Átha Cliath
- Woodpark, County Galway
- Woodside, County Cork
- Woodstown, Port Láirge
- Woodtown, Baile Átha Cliath
- Woodville, County Cork
- Woodville, County Cork
- Woodville, Ciarraí
- Woodville Grange, An Iarmhí
- Wormhole, County Galway
- Wyndham's Bridge, An Clár
- Yellow Furze, An Mhí
- Yellowford Cross Roads, County Carlow