Berit Berthelsen ( Tøien, 25 April 1944 – 13 February 2022) was a Norwegian athlete. She represented IL Tyrving. He also was part of the national team. She was known for participating in long jump and sprints events. She finished seventh at the 1964 Summer Olympics and ninth at the 1968 Summer Olympics. She won a bronze medal at the 1969 European Athletics Championships.