Last Names

Surnames / D

Dennett

How common is the last name Dennett?

About this name

We do not yet have a written origin for Dennett, 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.

Similar spellings

Names nearby in the census

#12,576

Dennett was the 12,576th most common surname in the 2010 US Census, with 2,462 people, about 0.8 in every 100,000.

Who carries it

  • White (non-Hispanic)82.1%
  • Hispanic or Latino6.7%
  • Black (non-Hispanic)7.4%
  • Asian or Pacific Islander0.6%
  • Two or more races1.8%
  • American Indian or Alaska Native1.4%

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.