Irish Surnames S – W

A list of Irish surnames beginning with S, T and W, from Scanlon to Ward


In Irish: O Scannláin, MacScannlain

Found in: Cork, Kerry, Limerick.

Origin: Gaelic

Scanlon. Connacht,


In Irish: O Scolaidhe

Found in: Tipperary, Leinster

Origin: Gaelic

Means “crier”, as in one who makes announcements.


Variant: Sheahan, Shannon

In Irish: O Shiacháin

Found in: Cork, Limerick, widespread

Origin: Gaelic

Means “peace”.


In Irish: Ó Sirideáin

Found in: Cavan

Origin: Gaelic


Variant: Tiernan.

In Irish: O Tighearnaigh

Found in: Donegal, Mayo, Tipperary.

Origin: Gaelic

Means “lordly”.


In Irish: Tóibín,

Found in: Clare, Cork, Limercik

Origin: Norman

From “de St. Aubyn”.


Variant: Tracy

In Irish: O Treasigh

Found in: Cork, Galway, Laois.

Origin: Gaelic

Means “fighter”.


In Irish: Mac Confhiaclaigh or de Tiúit

Found in: Meath, Westmeath, Louth Longford.

Origin: Gaelic, Norman

Both Gaelic and Normal families. The Irish family were here before the arrival of Richard de Tuit, a member of Strongbow’s army.


Variant: Flood

In Irish: O Taicligh, Mac an Tuile

Found in: Cavan, Longford, Westmeath.

Origin: Gaelic

Tuile means “flood”.


Variant: Toomey

In Irish: O Tuama

Found in: Clare, Cork, Kerry, Limerick

Origin: Gaelic


Variants: de Valle, du Val

Found in: Carlow, Cork, Kilkenny, Limerick, Waterford

Origin: Norman


Variant: Walshe, Welsh.

In Irish: Breathnach

Found in: Dublin, Kilkenny, Leix, Waterford, Wicklow. Widespread.

Origin: Gaelic

Means “Welshman”; many Welshmen came to Ireland as part of the armies of Norman invaders.


In Irish: Mac an Bháird

Found in: Galway, Mayo, Ulster.

Origin: Gaelic

Means “son of the bard (poet)”.

Published: August 6, 2008 | Updated: March 31, 2017 | Image Credits

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  • Steve says:

    No O’Neills ?

  • Geoffrey Tobin says:

    Before migrating to Ireland in the 1100s, the Tobins held the manor of Place Barton in Ashton, Devon, a property that is on the British Heritage register and is now popular for weddings.
    I’ve read differing statements about which location named “Saint Aubyn” the Tobins got their name from.  Saint Aubyn was an early Breton saint who was so popular that he has towns named after him across Brittany, Normandy, and as far east as Poland.
    In any case, the bulk of the population of Normandy and adjacent regions such as Anjou and Main had much common descent with the Bretons.  Even the Dukes of Normandy from the third generation were of majority Breton descent, so that William I’s first guardian was Duke Alan III of Brittany, and William’s half-brother Bishop Odo of Bayeux (that being in traditional Breton territory) insisted on being on the left (Breton) wing during the Battle of Hastings.

  • matthew tierney says:

    is desmond an irish surname it was my wife surname and she comes from cavan,my family are from donegal and cork,i would like to know as her family go back yrs and have all been irish.Thanks.

  • SEAN says:

    Williams – Very numerous: all areas. MacLysaght describes it as Welsh, but it is common all over Britain. A Norman first name, adopted from Teutonic Willihelm “resolve-helmet”. It has produced many variants. See Mac Williams. Ir. Mac Liam.


    MacWilliams – numerous: Ulster generally, Dublin etc. – Irish Mac Uilliam (Liam).
    The first name William, Teutonic Willhelm, meaning “will-helmet”, was common amongst the Normans.

  • James Malone says:

    Looking at your section on the Malone surname, you state the surnames Malone and Maloney are the same variants.According to MacLysaght/Grenham,Malone-O Maoileoin derives from Devotee of St John and Maloney-O Maol Dhomnaigh derives from descendant of the servent of the church. Malone and Maloney are from different septs/clans.

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