Cognomen Mcswiggan (Mcswiggan 
) , globally, is a rare last name. The family name Mcswiggan is characteristic of Ireland, where it is quite a rare surname, Qatar, and the United Kingdom, where it is a rare surname. Measured by absolute frequency, this name is the most popular in the United Kingdom, the United States, and Ireland.
| VARIANT | COUNTRY |
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| Mcswiggan | United Kingdom, Qatar, Ireland, United States, Canada |
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calum mcswiggan British YouTuber, GB (b. 1990) |
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| meagan mcswiggan researcher |
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| linda c mcswiggan researcher |
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| jane mcswiggan researcher |
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| greg mcswiggan Ph.D. University of Western Australia 2020 |
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| josh mcswiggan college basketball player (2018–2019) Portland |
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