Marián Štastný (born January 8, 1953) is a former Slovak professional ice hockey right wing who played for five seasons in the National Hockey League from 1981 through 1986 for the Quebec Nordiques and Toronto Maple Leafs.
Prior to moving to the NHL Štastný had played in Czechoslovakia for HC Slovan Bratislava with his brothers, Peter and Anton.
They defected in 1980, joining the Nordiques, though Štastný waited until 1981 to join them.