Fabio Gstrein (born 14 June 1997) is an Austrian Olympic and World Cup alpine ski racer and specializes in slalom. He won a silver medal in slalom at the 2026 Milan Cortina Olympics.
Gstrein won a silver medal in slalom at the 2018 Junior World Championships, held in Davos, Switzerland, and has represented Austria at two World Championships.
He is a distant relative of Bernhard Gstrein (b.1965), a former World Cup alpine racer.