Tomas Marcinko (born April 11, 1988 in Poprad, Slovakia) is a Slovak right winger playing for the Bridgeport Sound Tigers of the American Hockey League.
He played for HC Kosice from 2004 to 2006 and for the Barrie Colts from 2006 to 2008. The New York Islanders chose him 115th overall in the 2006 NHL Entry Draft.
Since 2008 Marcinko has been playing for the Islanders' farm team at Bridgeport.
He played for Slovakia at the 2006 IIHF World U18 Championships and the 2007 World Junior Championship.