Last Names

Surnames / M

Mulloy

How common is the last name Mulloy?

About this name

We do not yet have a written origin for Mulloy, so here is what the census records show.

Surname origins are rarely settled, and we would rather say nothing than guess. The sources below are the best places to look, and our guide to how surnames began explains the usual types.

Names nearby in the census

#16,031

Mulloy was the 16,031st most common surname in the 2010 US Census, with 1,809 people, about 0.6 in every 100,000.

Who carries it

  • White (non-Hispanic)95.0%
  • Hispanic or Latino2.8%
  • Black (non-Hispanic)0.3%
  • Asian or Pacific Islander0.7%
  • Two or more races0.9%
  • American Indian or Alaska Native0.3%

Check the sources

For a name you are serious about, compare the dictionaries: Reaney and Wilson, A Dictionary of English Surnames; Hanks, Dictionary of American Family Names.