In his first Olympic competition, he helped Team Sweden capture a gold medal in 2006. As the starting goaltender, Lundqvist appeared in six of Sweden's seven games, posting a 5-1 record.
He has represented Sweden in four World Championships (2003, 2004, 2005 and 2008), winning a silver medal as the starting goaltender in 2004. In Lundqvist's most recent World Championship appearance he posted a .911 save percentage and a 2.97 goals-against average in five games, finishing fourth after a bronze medal loss to Finland.
At the age of 20, he backstopped Sweden to gold at the 2002 IIHF InLine Hockey World Championships in Germany (the highest the Swedes had ever finished was sixth). Sweden defeated Finland 6-5 in overtime and Lundqvist finished the tournament with a .901 save percentage and a 3.58 goals against average.