Rudolf "Rudi" Belin (born 4 November 1942) is a Croatian retired football manager and player.

Belin started his career with Dinamo Zagreb in 1960, where he won the Yugoslav Cup three times and the 1967 Inter-Cities Fairs Cup, beating the English side Leeds United and went on to make 410 appearances for the club until 1970, when he moved to Beerschot VAC in Belgium and he spent two years.

He made his debut for Yugoslavia in an October 1963 friendly match away against Romania and earned a total of 29 caps scoring 6 goals.

His final international was an October 1969 World Cup qualification match against Belgium.

After retiring, he graduated from the Physical Education School at the University of Zagreb, becoming a coach, while he also spent a considerable time acting as Director of Dinamo's Youth Football Academy and also coached Toronto Croatia in Canada, during 1998.