MCDONNELL

The surname McDonnell is of Gaelic origin, borne by a family that has inhabited the British Isles, principally Ireland, since antiquity. It is derived from the Irish Gaelic Mac Domhnaill; the prefix mac means “son of”, a construction common to many Celtic patronymic surnames. The name is predominantly associated with Ireland, although its roots are intertwined with those of Scotland, owing to migrations across the North Sea during the Middle Ages.

In its Gaelic form, Mac Domhnaill translates literally as “son of Domhnall”. The personal name Domhnall is a compound of the elements domhan, meaning “world”, and all, meaning “mighty” or “ruler”. Consequently, the surname McDonnell may be interpreted as “son of the mighty ruler” or “son of the world ruler”.

The McDonnell clan is one of the most ancient and numerous family names recorded in Ireland. It originated from the Gaelic personal name Donhnall—a variant of Domhnall—which itself incorporates the Celtic elements dubno (world) and val (might). The ancestry of the name is linked to both Scottish and Irish lines, with members of the clan arriving in Ireland from the 13th century and establishing themselves as gallowglasses, or mercenary soldiers, in the north of the island. A number of notable bearers have carried the name through the centuries, including the eminent poet Seán Clarach MacDonnell (1691 – 1754) of Munster, and the scholar John de Courcy Mac Donnell (1859 – 1915).

Several distinct McDonnell septs were identified by the early 16th century. In Leinster alone there were six separate septs; a further sept operated in Thomond, where the clan served as bards to the O’Briens before the Gaelic order was altered by external invasion. A documented marital alliance occurred when Alexander McDonnell wed Katherine White at Londonderry, Templemore on 19 December 1683. The earliest surviving spelling of a McDonnell surname appears in a manuscript dated ca. 1550 and attributed to Sorley Boy MacDonnell (1505 – 1590), during the reign of King Edward VI (1547 – 1553), known as “the Boy King”.

Throughout history the surname has appeared in several orthographic variants. Common spellings include MacDonald, McDonald, McDonell, MacDonnell, Macdonell, Mcdonell, and MacDonell. These variations arise from regional pronunciation differences, transcription errors, or personal preference. Related surnames sharing the same root are Donnelly, Donnall, O’Donnell, and occasionally compounds with the prefix Fitz, yielding FitzMcDonnell or FitzMacDonnell.

The Irish form of mac is typically rendered as “son of”, whereas the Scottish form is interpreted more generally as “of”. Consequently, the traditional Irish spelling McDonnell is most frequently used in Ireland, while the Scottish variant is often MacDonald or McDonald. The name has long been associated with the counties of Antrim and Mayo, where the clan achieved considerable prominence. Due to historic migration, the surname is now found in a number of English‐speaking countries, including the United States, Canada, Australia, and the United Kingdom.

Today, McDonnell remains a common surname within its country of origin, Ireland, and its various historical spellings are still in regular use, reflecting both the deep-rooted heritage of the clan and the broader diaspora of its bearers.

Typical given names associated with the McDonnell surname

Male

• Anthony
• David
• James
• John
• Kevin
• Michael
• Patrick
• Paul
• Peter
• Thomas

Female

• Ann
• Anne
• Catherine
• Claire
• Elizabeth
• Kathleen
• Margaret
• Mary
• Patricia
• Sarah
• Susan

Similar and related surnames

Related and similar names are generated algorithmically based on the spelling, and may not necessarily share an etymology.

How to communicate the surname McDonnell in...

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Did you know?

According to a survey carried out by Democracy Club, politicians and candidates with the surname McDonnell are most likely to say that their favourite biscuit is a Rich Tea.

Surname type: From name of parent

Origin: Celtic

Region of origin: British Isles

Country of origin: Ireland

Religion of origin: Christian

Language of origin: Gaelic

Famous people named McDonnell

• John McDonnell - Politician
• Charlie McDonnell - Vlogger
• Jamie McDonnell - Boxer
• Sophie McDonnell - Broadcaster
• Jim McDonnell - Boxer
• Alasdair McDonnell - Irish politician
• Alexander McDonnell, 9th Earl of Antrim - 9th Earl of Antrim
• Gavin McDonnell - Boxer
• Steven McDonnell - Gaelic football player
• Peter McDonnell - Football player and manager
• Flora McDonnell - Writer
• Louisa McDonnell, Countess of Antrim - Daughter of Hon. Charles Grey and Caroline Eliza (1855 to 1949)
• Angus McDonnell - Politician (1881 to 1966)
• Percy McDonnell - Australian cricketer (1860 to 1896)
• Martin McDonnell - Football player (1924 to 1988)
• Niall McDonnell - Cricketer
• Charlie McDonnell - Football player (1936 to 2010)
• Randell McDonnell - Cricketer (1843 to 1923)

Names and descriptions courtesy of Wikipedia, and may contain errors. This is not intended to be an exhaustive list of every famous person with this name.

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