Marcel Gery (born March 15, 1965) is a former butterflyswimmer, who was born in Czechoslovakia and competed for the Czechoslovakian national team in international competition. He later emigrated to Canada and competed for the Canadian national team at the 1992 Summer Olympics in Barcelona, Spain. There he won the bronze medal with the men's 4×100-metre medley relay team, alongside Mark Tewksbury, Jonathan Cleveland and Stephen Clarke.