Preben Kaas (30 March 1930 – 27 March 1981) was a Danish comedian, actor, script writer and film director. He appeared in more than 50 films between 1943 and 1980. He received the 1970 Bodil for best actor in a supporting role for his role in The Olsen Gang in a Fix.

He was born in Aalborg and died in Copenhagen. Preben Kaas was married to Bodil Nymark Nielsen, Ulla Kaas Larsen, Anne Marie Lie and Lisbet Dahl. He is the father of actor and bandleader Jeppe Kaas and actor Nikolaj Lie Kaas.