Mark Lofthouse is a former professional ice hockey player.  Born in New Westminster, B.C., Lofthouse was drafted in 1977 in the second round, 21st overall by the Washington Capitals. While the majority of his playing time was spent in the minors, Lofthouse played 181 games in the NHL between 1977 and 1983 with the Capitals and Detroit Red Wings. He scored 42 goals and added 38 assists for 80 points.

While his time in the NHL was limited, Lofthouse had a lengthy professional career playing 12 years in the AHL where he had a number of career accomplishments including an AHL First Team All-Star, Willie Marshall Award for most goals scored in the AHL and the John B. Sollenberger Trophy for most points. On top of winning CHL Memorial Cup, Lofthouse also won the 1984-85 Spengler Cup with Team Canada and the 1987-1988 AHL Calder Cup with the Hersey Bears.

On December 31, 2010, Lofthouse suited up for the Capitals again on for an alumni game against the Pittsburgh Penguins. The game was held on Heinz Field on the day before the NHL Winter Classic and Lofthouse scored in the first period, tying the game.