Joosten () is a Dutch and German patronymic surname, meaning "son of Joost". Notable people with the surname include:
Albert Joosten (1914–1980), Dutch Montessori teacher Astrid Joosten (born 1958), Dutch television personality Jan Joosten van Lodensteijn (c. 1560–1623), Dutch sailor, one of the first Dutchmen in Japan Jan Joosten (biblical scholar) (born 1959), Belgian professor of the Old Testament Julie Joosten (born 1980), American-Canadian poet Kathryn Joosten (1939–2012), American television actress Patrick Joosten (born 1996), Dutch footballer Stefanie Joosten (born 1988), Dutch model, singer and actress Joostens Ángela Joostens (1872–1940), Argentinian with Belgian citizenship after whom the Argentine city of Villa Ángela has been named Maurice Joostens (1862–1910), Belgian diplomat