Ingebretsen is a Norwegian patronymic surname which may refer to: Bjarne Kortgaard Ingebretsen, Norwegian football midfielder Eugen Ingebretsen, Norwegian gymnast who competed in the 1906 Summer Olympics, in the 1908 Summer Olympics, and in the 1912 Summer Olympics Herman Smitt Ingebretsen, Norwegian politician for the Conservative Party Olaf Ingebretsen, Norwegian gymnast who competed in the 1912 Summer Olympics Paul Ingebretsen, Norwegian politician for the Liberal Party Robert B. Ingebretsen, American engineer and pioneer in the development of digital sound. Wikipedia