Woodcock / Originally Woodcot / English toponymic origins / They were in Co. Cork - Southern Munster early on / Later some also came with the Cromwell Invasion and were then in Co. Kilkenny - Western Leinster / Now mostly in Co. Dublin - Mid Eastern Leinster.

Woodlock / English origins / They were initially in Co. Waterford - North East Munster then in Co. Dublin - Mid Eastern Leinster and in the south of there in the 13th Century.

Mac Woodman / Irish - Mheic Giolla Coille /

Woodman / le Wodeman / French occupational origins / They have been in Co. Louth - North East Leinster since the 14th Century.

Woods / Irish - coille - coillte - woods / See Mac Ilhoyle, Mac Enhill, Quilty, Quill, Quilly & Kilmet / See also Cox - Mac Ilhoyle - Coyle / Irish - Mheic Giolla Comhghaill - descended from a devotee of St. Comgall in Co. Donegal & Co. Monaghan - Ulster / Mac Quilly - Magilly / Irish - Mheic an Choiligh - descended from a son of the cock in Co. Roscommon - Eastern Connacht / Mac Elhone / Irish - Mheic Giolla Chomgain - descended from a son of a devotee St. Comhgan in Co. Tyrone - Central Ulster / Quilty / Irish -  Mheic Caoilte in Munster - descended from a son of the hound of the woods / Mac Enhill / Irish - Mheic Conchoille at Omagh in Co. Tyrone - Central Ulster.

Woods / English origins /

Woolahan or Wolohan / Used as variants for Holohan, which see, in Co. Kilkenny & Co. Wicklow - Southern Leinster.

Wooley / Gaelicized as a Bhula / Used as a synonym for Woulfe, which see.

Woolhare / See Wilhair.

Woolseley / English toponymic origins / They came from Staffordshire and were in Ulster in the early 17^th Century / Not connected to Wolsey.

Worth / werdh - homestead / English locative origins / They were in Leinster & Munster in the 17th & 18th Centuries / Not connected to Mac Worth a variant of Mackworth.

Woulfe / de Bhulb / Norman origins / They were in Co. Limerick - North West Munster & Co. Kildare - Central Leinster early on / See also Nix & Wooley.

Wrafter / See Rafter.

Wray / Used as a synonym for Rea & Mac Crea, which see.

Wrenn / English name / Used as a synonym for Ring & Rynne, which see.

Wright / Kincart, which see / Irish - Mheic an Cheairt - ceart - right / used as a synonym in Co. Mayo - Mid Western Connacht.

Wright / English origins / They were in Ulster & Co. Dublin - Mid Eastern Leinster.

Wrinne or Wrynn / Used as a variant for Rinn in Co. Leitrim - Northern Connacht.

Wrixon / Originally Wrightson / English origins / They were in Co. Cork - Southern Ireland since the end of the 17th Century.

Wyer / Used by the Irish - Mheic an Mhaoir / A Sept - Family branch who had their territory in Co. Westmeath - North West Leinster to anglicize their name / Confused with Weir, which see, there.

Wylie or Wiley / Irish - Ui hUallaigh / A Sept - Family branch who had their territory in Co. Clare - North West Munster.

Wylie or Wiley / English toponymic origins / They came into Ireland during the Confiscation of the "Northern" Ui Niaill territories and Protestant Plantation of Ulster at he beginning of the 17th Century /  Now mostly in Co. Antrim - North East Ulster.

Wymes / See Weymes.

Wyndham / Used as a synonym for Mulgeehy, which see / See also Wynne.

Wynne / akin to the Welsh name Gwynn / Used by many Irish Families with the sound – gee in their name such as gaoithe - of wind / Mac Gee, Mac Geehan, Mulgeehy, which see / Also for Mag Aodha, which was confused with gaoth / wind.

Wyse / Anglo Norman origins / Gaelicized as de Uidheas but should be le - the wise man / They came with the Anglo - Norman Invasion and were in Co. Waterford - North East Munster.