![](https://www.geni.com/images/external/x_com_black_16.png?1718400071)
![](https://www.geni.com/images/facebook_white_small_short.gif?1718400071)
English and Scottish: from the vernacular pronunciation in Middle English and Older Scots of the personal name Michael . See Michelson . English and Scottish: nickname for a big man from Middle English michel mechel muchel ‘big’. Irish (County Connacht): surname adopted as equivalent of Mulvihill . Source: Dictionary of American Family Names 2nd edition, 2022