John Michael Lalor (born March 8, 1963) is an American former professional ice hockey defenceman.

Although a U.S. citizen by birth, Lalor spent his youth in Fort Erie, Ontario.

Lalor played in the NHL with the Montreal Canadiens, St. Louis Blues, Washington Capitals, Winnipeg Jets, San Jose Sharks and Dallas Stars.

He currently owns a gym called Teammates Fitness in Wellesley, Massachusetts.

Lalor represented the U.S. Hockey Team at the 1996 Men's World Ice Hockey Championships.