- Source: Ingebretsen
Ingebretsen is a Norwegian patronymic surname. Notable people with the surname include:
Bjarne Kortgaard Ingebretsen, Norwegian football midfielder
Eugen Ingebretsen (1884–1949), Norwegian gymnast
Herman Smitt Ingebretsen (1891–1961), Norwegian politician for the Conservative Party
Olaf Ingebretsen (1892–1971), Norwegian gymnast
Paul Ingebretsen (1904–1968), Norwegian politician for the Liberal Party
Robert B. Ingebretsen (1948–2003), American engineer and pioneer in the development of digital sound