McSweeney History, Family Crest & Coats of Arms 

Origins Available: 
  Ireland 
  Scotland 


Irish names tend to vary widely in their spelling and overall form. The original Gaelic form of the name McSweeney is Mac Suibhne, which is derived from the word "suibhne," which means "pleasant."

Early Origins of the McSweeney family

The surname McSweeney was first found in County Donegal (Irish: Dún na nGall), northwest Ireland in the province of Ulster, sometimes referred to as County Tyrconnel. The name is derived from Suibhne O'Neill, who was a chieftain in Argyll, Scotland. His descendants migrated to Ireland as gallowglasses (mercenaries) prior to 1267. The three great septs of this name finally established themselves in Tirconnell in 14th century; they were known as MacSweeney Fanad, MacSweeney Banagh, and MacSweeney na dTuath, who were commonly referred to as 'MacSweeney of the Battleaxes.' They later became attached to the MacCarthys in the south and acquired their own territories and castles in Muskerry in County Cork.

Early History of the McSweeney family

This web page shows only a small excerpt of our McSweeney research. Another 69 words (5 lines of text) covering the years 1299 and 1310 are included under the topic Early McSweeney History in all our PDF Extended History products and printed products wherever possible.

McSweeney Spelling Variations

Just like the English language, the Gaelic language of Ireland was not standardized in the Middle Ages. Therefore, one's name was often recorded under several different spellings during the life of its bearer. Spelling variations revealed in the search for the origins of the McSweeney family name include MacSweeney, MacSweeny, MacSwine, MacSwiney, MacSwyne, MacSwyny, MacWhinney, MacWhinny, MacWhinnie, MacSwiny, McSweeney, Swiney, Swinney and many more.

Early Notables of the McSweeney family

Prominent amongst the family at this time was John MacSween, a 13th-14th century nobleman who lost his lands in Scotland after the defeat of the forces and death of Alexander Og MacDonald, Lord of Islay in 1299. In...
Another 37 words (3 lines of text) are included under the topic Early McSweeney Notables in all our PDF Extended History products and printed products wherever possible.

McSweeney Ranking

In the United States, the name McSweeney is the 9,800th most popular surname with an estimated 2,487 people with that name. 1



McSweeney migration to the United States +

Death and immigration greatly reduced Ireland's population in the 19th century. For the native Irish people poverty, hunger, and racial prejudice was common. Therefore, thousands left their homeland to seek opportunity in North America. Those who survived the journey and the quarantine camps to which they arrived, were instrumental towards building the strong developing nations of the United States and the future Canada. By far, the largest influx of Irish settlers occurred with Great Potato Famine during the late 1840s. These were employed as construction or factory workers. An examination of passenger and immigration lists has shown early immigrants bearing the name McSweeney:

McSweeney Settlers in United States in the 19th Century
McSweeney Settlers in United States in the 20th Century

McSweeney migration to Canada +

Some of the first settlers of this family name were:

McSweeney Settlers in Canada in the 19th Century

McSweeney migration to Australia +

Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:

McSweeney Settlers in Australia in the 19th Century

McSweeney migration to New Zealand +

Emigration to New Zealand followed in the footsteps of the European explorers, such as Captain Cook (1769-70): first came sealers, whalers, missionaries, and traders. By 1838, the British New Zealand Company had begun buying land from the Maori tribes, and selling it to settlers, and, after the Treaty of Waitangi in 1840, many British families set out on the arduous six month journey from Britain to Aotearoa to start a new life. Early immigrants include:

McSweeney Settlers in New Zealand in the 19th Century

Contemporary Notables of the name McSweeney (post 1700) +






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