Marek Petrusewicz (22 February 1934 – 3 October 1992) was a Polish swimmer who won a silver medal in the 200 m breaststroke at the 1954 European Aquatics Championships. He competed in the same event at the 1952 Summer Olympics but did not reach the finals. Between 1953 and 1954 he set two world records in the 100 m breaststroke.