Justin Bradley Olsen (born April 16, 1987) is an American bobsledder who has competed since 2008. He won two medals at the 2009 FIBT World Championships in Lake Placid, New York, with a gold in the four-man and a bronze in the mixed team events. Olsen's best event bobsleigh World Cup finish was second on three occasions in 2008–09. Olsen won a gold medal at the 2010 Vancouver Olympics in the four-man bobsled with driver Steve Holcomb.