Alexander Steen (born March 1, 1984) is a Canadian-born Swedish professional ice hockey player for the St. Louis Blues of the National Hockey League (NHL). He serves as an alternate captain for the Blues during home games.
Steen played for Frölunda HC from 1999 to 2004. He spent the 2004–05 season with Modo Hockey after a highly controversial signing.
In the 2002 NHL Entry Draft, Steen was selected in the first round by the Toronto Maple Leafs, 24th overall. He played his first game with the Leafs on October 5, 2005 during the season opener against the rival Ottawa Senators, and registered a minor penalty.