Mario Marois (born December 15, 1957) is a Canadian former ice hockey defenceman.
As a youth, Marois played in the 1968, 1969 and 1970 Quebec International Pee-Wee Hockey Tournaments with a minor ice hockey team from L'Ancienne-Lorette, Quebec.
Marois started his National Hockey League career with the New York Rangers in 1978. He also played for the Vancouver Canucks before landing with the Quebec Nordiques. While with the Quebec Nordiques, Marois served as team captain for three years before being traded to the Winnipeg Jets.
He left the NHL after the 1992 season. He served one season as a player-assistant coach of the Hamilton Canucks of the AHL in 1992–93 before retiring as a player.
He worked as a scout with the Carolina Hurricanes and Vancouver Canucks before later becoming an amateur scout with the Detroit Red Wings. He was inducted into the QMJHL Hall of Fame in 2016.
Biographical information and career statistics from NHL.com, or Eliteprospects.com, or Hockey-Reference.com, or The Internet Hockey Database