Marcel Gery (in Czech and Slovak Marcel Géry; born March 15, 1965) is a former butterfly swimmer, who was born in Czechoslovakia and competed for the Czechoslovak national team in international competitions.
At the 1985 Summer Universiade, Gery won a bronze medal in the 200-metre freestyle.
He later emigrated to Canada and competed for the Canadian national team at the 1992 Summer Olympics in Barcelona, Spain. There he won bronze medal with the men's 4ÃÂ100-metres medley relay team, alongside Mark Tewksbury, Jonathan Cleveland and Stephen Clarke.