Jan Ingemar Stenmark (born March 18, 1956 in Joesjö, Storumans municipality) is a former Swedish skier, active during the '70s and '80s. He is regarded as one of the most prominent Swedish sportsmen, and as the greatest slalom and giant slalom specialist of all time. He competed for Fjällvinden Tärnaby.

Stenmark was born in the province of Lappland. His family moved to Tärnaby when he was four years old, where he became neighbours with Stig Strand, who would later win the World Cup Slalom title. He began skiing at the age of five and won his first national competition at the age of eight.