411 REFERENCE · Wiktionary
Heffernan
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Anglicized form of en ga Ó hIfearnáin descendant of Ifearnán, a personal name derived from a diminutive form of ga ifreannach demon, from ga ifreann hell.
Proper noun
s
en Irish.
Statistics
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