Breivik is a Norwegian surname meaning "broad cove". Notable people with the surname include:
Anders Behring Breivik (born 1979), perpetrator of the 2011 Norway attacks Ane Breivik (born 1998), Norwegian politician (1932–2012), Norwegian painter Bård Breivik (1948–2016) Norwegian sculptor Birger Breivik (1912–1996), Norwegian politician Dag Petter Breivik (born 1970), Norwegian footballer Eirik Langedal Breivik (born 1998), Norwegian orienteering competitor Emil Breivik (born 2000), Norwegian footballer Gunnar Breivik (born 1943), Norwegian sociologist (born 1940), Norwegian physician Marit Breivik (born 1955), Norwegian handball coach and player Terje Breivik (born 1965), Norwegian politician Thomas Breivik (born 1977), Norwegian footballer