as a Last Name
- 16,986
- people in the U.S. have this name Get contact details for people named Monahan
Meaning & Origins
Irish: Anglicized form of Gaelic Ó Manacháin ‘descendant of Manachán’, a personal name representing a diminutive of manach ‘monk’. See also Monk. The Gaelic name is sometimes interpreted as if it were Ó Muineacháin ‘descendant of the little shrubbery’, and is sometimes translated as Thornton. Compare the place name Monaghan.
| 2,168th in the U.S. for 2011 |
Nicknames & variations
Quick facts
- Thousands
- of people in the U.S have this name
- 16,986
- to be exact (as of February 2011)
- Massachusetts
- has the most people named Monahan per capita
Top state populations
U.S. Distribution Map