Show ContentsMacSwiney History, Family Crest & Coats of Arms

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

Early Origins of the MacSwiney family

The surname MacSwiney 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 MacSwiney family

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

MacSwiney Spelling Variations

Irish names were rarely spelled consistently in the Middle Ages. Spelling variations of the name MacSwiney dating from that time include MacSweeney, MacSweeny, MacSwine, MacSwiney, MacSwyne, MacSwyny, MacWhinney, MacWhinny, MacWhinnie, MacSwiny, McSweeney, Swiney, Swinney and many more.

Early Notables of the MacSwiney 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 MacSwiney Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the MacSwiney family

The 19th century saw a great wave of Irish families leaving Ireland for the distant shores of North America and Australia. These families often left their homeland hungry, penniless, and destitute due to the policies of England. Those Irish immigrants that survived the long sea passage initially settled on the eastern seaboard of the continent. Some, however, moved north to a then infant Canada as United Empire Loyalists after ironically serving with the English in the American War of Independence. Others that remained in America later joined the westward migration in search of land. The greatest influx of Irish immigrants, though, came to North America during the Great Potato Famine of the late 1840s. Thousands left Ireland at this time for North America, and those who arrived were immediately put to work building railroads, coal mines, bridges, and canals. In fact, the foundations of today's powerful nations of the United States and Canada were to a larger degree built by the Irish. Archival documents indicate that members of the MacSwiney family relocated to North American shores quite early: Adam Sweeney, who settled in New York, NY in 1805; Alexander Sweeney, who came to Boston in 1768; Biddy Sweeney, who arrived in St. John, N.B. aboard the Brig Ambassador in 1834.


Contemporary Notables of the name MacSwiney (post 1700) +

  • Terence MacSwiney (1879-1920), Irish nationalist


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