English edit

Etymology edit

Anglicization of Irish Ó Manacháin, commonly anglicized as Monaghan.

Proper noun edit

Monahan (plural Monahans)

  1. A surname from Irish.

Statistics edit

  • According to the 2010 United States Census, Monahan is the 2347th most common surname in the United States, belonging to 15533 individuals. Monahan is most common among White (94.37%) individuals.

Further reading edit