Sebastian Lauritzen is a Swedish forward on Brynas IF.
Lauritzen made his professional debut with Timra IK in 2002-03, appearing in 8 games that season. He spent the next three seasons in the lower levels of Swedish professional hockey before returning to the Elitserien with Linkoping in 2007. He appeared in only 2 games with the club that year, but played his first full season in the Elitserien in 2008-09, spending the last 2/3 of the season with Brynas. He scored 17 points in 36 games with the club and will return for the 2009-10 season.