Jaroslav Spacek is a Czech defenseman on the Montreal Canadiens.
Spacek was drafted by the Florida Panthers in 1998, after playing with Farejstads of the Swedish Elitserien. He played two full seasons with the Panthers before being traded to Chicago in 2000. After two more seasons with the Blackhawks, he was traded to the Columbus Blue Jackets, where he had the best season of his career in 2003. That season, in 81 games, Spacek scored 9 goals and 36 assists for 45 points, while accumulating 70 penalty minutes. In 2005, after the lockout, he returned to Chicago, where he played most of the regular season before being traded to Edmonton before the deadline. He was part of the Oilers club which made it to the Stanley Cup Finals that season. When Edmonton failed to win the Cup, he signed with Buffalo. Spacek spent the next three seasons with the Sabres, matching his career high of 45 points in 2008-09. Spacek served as captain and alternate captain of the Sabres at a number of points during his tenure with Buffalo, and became a free agent at the end of the 2009 season. He signed with Montreal for $11.5 million over 3 years.
Spacek won a gold medal with the Czech Republic at the 1998 Winter Olympics, as well as a bronze at the 2006 Games.