Coat of Arms: Silver with three blue mermaids combing their hair between three blue stars.
Crest: A gold wild boar's head.
Spelling variations include: MacAuliffe, MacCauliffe and others.
First found in in county Cork where they had been seated from ancient times.
Some of the first settlers of this name or some of its variants were: William MacCauliffe settled in Philadelphia in 1840; James, Joanna, Margaret and Norry MacAuliff settled in Boston Mass in 1849; Cornelius, Denis, Michael, Patrick MacAuliffe all arrived in New York State in 1849 and others.