Marek Schwarz (born April 1, 1986 in Mladá Boleslav, Czechoslovakia) is a Czech professional ice hockey goaltender currently playing for the BK Mladá Boleslav of the Czech Extraliga and is a prospect for the St. Louis Blues of the National Hockey League.
Schwarz played junior in his native Czech Republic with Sparta Praha's junior team. He made his debut at the senior level with Sparta Praha playing one game in the Czech Extraliga in 2002–03. The following season, he joined the Extraliga full-time at seventeen-years-old and played between three teams – HC Plzeň, HC Trinek Oelari and Sparta Praha. That off-season, Schwarz was drafted 17th overall by the St. Louis Blues in the 2004 NHL Entry Draft.
Upon being drafted, he moved to North America to play major junior in the Western Hockey League (WHL) with the Vancouver Giants. He posted a 2.67 GAA and a winning record before moving back to the Czech Republic the following season to continue to play for Sparta Praha.