Family name Macsweeney (Macsweeney 
) , throughout the world, is a rare surname. The cognomen Macsweeney is characteristic of Ireland, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Australia. In absolute terms, this name is the most popular in Ireland, the United Kingdom, and the United States.
| VARIANT | COUNTRY |
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| Macsweeney | United Kingdom, Australia, United States, Argentina, Ireland |
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patrick macsweeney Irish Catholic priest, Gaelic scholar, and academic, IE (b. 1873) |
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| barry macsweeney English poet, GB (b. 1948) |
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| marie macsweeney poet and short-story writer, IE |
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| shane macsweeney researcher |
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| joane macsweeney (died 1630) |
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| ellen macsweeney Peerage person ID=544300 |
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| mairéad macsweeney researcher |
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| turlogh 'baccagh' macsweeney Peerage person ID=543581 |
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| christina macsweeney |
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Mr, Greg, Jake, John, Joan, Juan, Tina, Emer, Emma, Eoin, Dave, Hugo, Marie, Sarah, Shane, Steve, Aidan, Aaron, Aoife, Chris, Conor, Orla, Ryan, Rory, Rose, Ms, Jo, Sam, Ann, Kay, Pat, Ray, Leo, Joe, Tom, Tim, Eve, Mary, Mark, Sara, Sean, Alex, Alix, Anne, Kate, Paul, Cesar, and Barry