Guenther Steiner is an Italian motorsport engineer and team manager. He is the current team principal of the Haas Formula One Team, and the previous managing director of Jaguar Racing and technical operations director of its subsequent incarnation, Red Bull Racing. In 2014, Guenther persuaded the Stewart-Haas Racing business partners to enter Formula 1.

With their entry in the 2016 season, Haas became the first American constructor to compete in F1 in 30 years. The team took eight points at the 2016 Australian Grand Prix with a 6th-place finish, becoming the first American entry, and the first constructor overall since Toyota Racing in 2002, to score in their debut race. Steiner is also a prominent figure in the cast of the successful Netflix series Drive to Survive.