English edit

 
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Etymology edit

Anglicized form of Irish Ó hIfearnáin (descendant of Ifearnán), a personal name derived from a diminutive form of ifreannach (demon), from ifreann (hell).

Proper noun edit

Heffernan (plural Heffernans)

  1. A surname from Irish.

Statistics edit

  • According to the 2010 United States Census, Heffernan is the 5043rd most common surname in the United States, belonging to 6961 individuals. Heffernan is most common among White (94.34%) individuals.

Further reading edit