Andresen and the parallel form Andreasen are Danish-Norwegian patronymic surnames meaning "son of Andreas". It has a similar origin as the name Andersen. It may refer to:Alexandra Andresen, Norwegian heiress, world's youngest billionaire
August H. Andresen (1890–1958), American politician
Björn Andrésen (1955–2025), Swedish actor and musician
Frode Andresen, Norwegian biathlete
Ivar F. Andresen (1896–1940), Norwegian operatic singer
Martin Andresen, Norwegian footballer
Momme Andresen (1857–1951), German industrial chemist who invented the photographic developer "Rodinal"
Rasmus Andresen, German politician
Sophia de Mello Breyner Andresen (1919–2004), Portuguese poet