Cognomen Mcmain (Mcmain 
) , in the entire world, is a rare family name. The last name Mcmain is characteristic of the United Kingdom, where it is a rare surname, the United States, where it is a very rare surname, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Mcmain | Australia, Germany, Canada, United Kingdom, United States |
| eleanor mcmain settlement house worker and progressive reformer, US (b. 1868) |
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| joe mcmain (1872-1957), GB (b. 1872) |
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| shelley f mcmain researcher (ORCID 0000-0002-0269-5876) |
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