Surname Mcsweeny (Mcsweeny 
) , throughout the world, is a rare last name. The family name Mcsweeny is habitual in Australia, where it is a rare surname, New Zealand, and Ireland. Measured by absolute frequency, it is the most numerous in the United States, Australia, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Mcsweeny | Australia, Canada, United Kingdom, United States, New Zealand |
| george mcsweeny British KC (b. 1865) |
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|
terrell mcsweeny |
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| ethan mcsweeny American theatre director |
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