Andreassen is a common surname in Norway, meaning "son of Andreas". The parallel Danish forms are Andresen and Andreasen, the Swedish Andreasson. It may refer to:Anita Andreassen, Norwegian mushing competitor; she has also competed in cycling and cross country skiing Bjørn Andreassen (1946–2015), Norwegian ice hockey player Cesilie Andreassen, Norwegian footballer Elisabeth Andreassen, known as "Bettan", a Norwegian singer Geir Hartly Andreassen, FSF, Norwegian cinematographer based in Stockholm, Sweden Gunn Margit Andreassen, Norwegian biathlete Gunnar Andreassen (1913–2002), Norwegian football player and manager Harald Magnus Andreassen, Norwegian economist Harriet Andreassen (1925–1997), Norwegian labour activist and politician for the Labour Party John Andreassen (1943–2026), Norwegian TV-producer with the Norwegian Broadcasting Corporation Kjell Schou-Andreassen (1940–1997), Norwegian footballer and one of the country's most successful football managers Kristin Andreassen, American musician and dancer Kyrre Andreassen, Norwegian author and translator Marit Andreassen, Norwegian actress, born in Svolvær Ole Petter Andreassen, Norwegian musician and producer from Flekkefjord, Norway Reidar Andreassen, Norwegian long-distance runner and cross-country skier Rolf Andreassen, Norwegian competition rower and Olympic medalist Tor Arne Andreassen, Norwegian footballer who plays as a defender and midfielder Tormod Andreasen, Norwegian curler