MCQUILLAN

The surname McQuillan is of Irish origin, traditionally situated within the province of Ulster in the Northern part of the island. Its earliest form is the Gaelic Mac Uighilin, a patronymic meaning son of Uighilin. The personal name Uighilin is believed to be a diminutive of the Gaelic Uilleag, which translates as willful or helmeted.

During the Norman invasion of Ireland in the late twelfth century, a knight named Hugeline de Mandeville – a descendant of Norman‑Welsh stock – came to the island as a follower of Richard de Clare, the Earl of Pembroke. He was granted lands in The Route, a tract in County Antrim extending from Ballycastle to the shores of Lough Neagh. The clan that subsequently adopted the habitational name came to be known as the Lords of the Route and claimed the chief residence at the castle of Dunluce until the late fifteenth century. In 1580, the McQuillans were defeated by the MacDonnells, after which the family became indistinguishable from native Gaelic septs and were recognised as hereditary High Constables of Ulster and princes of Dalriada.

One of the most celebrated figures of the clan was Rory Og McQuillan, chief in the early sixteenth century, who in 1541 declared that No Captain of this race ever died in his bed. The earliest recorded spelling of the name appears in a document dated between 1390 and 1449, which records Sincin Mor MacQuillan at Route, County Antrim, during the reign of King Art MacMurrough of Leinster (1376‑1417).

The surname has been subject to a number of orthographic variations, including McQuillin, McQuillian, Quillan, MacQuillan, and even O’McQuillan. The variation with a capital Min Mc or Mac remains common, while some bearers use an unhyphenated Mc prefix in keeping with traditional Irish naming practices. The family motto, recorded in historical sources, is the Latin phrase “Justus esto, et non metue”, translated as Be just and fear not.

In contemporary contexts, the surname McQuillan remains most prevalent in Northern Ireland, particularly in County Antrim, but it has spread to other English‑speaking countries in line with the broader Irish diaspora. Bearers of the name can now be found in the United States, Canada, Australia, and the United Kingdom, where lineage and clan history continue to be of interest to genealogical researchers.

Typical given names associated with the McQuillan surname

Male

• Andrew
• David
• James
• John
• Mark
• Michael
• Paul
• Stephen
• Thomas
• William

Female

• Anne
• Annette
• Catherine
• Claire
• Elizabeth
• Emma
• Joanne
• Julie
• Linda
• Margaret
• Mary
• Patricia
• Sarah
• Teresa

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 McQuillan in...

Braille

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Morse

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Semaphore

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 McQuillan

• Adrian McQuillan - Politician
• John McQuillan - Scottish football player

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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