Toni Breidinger is an American professional stock car racing driver. She competes part-time in the ARCA Menards Series, East, and West, driving the No. 55 Toyota Camry for Venturini Motorsports. She also competes part-time in the NASCAR Craftsman Truck Series, driving the No. 1 Toyota Tundra for Tricon Garage. She was the female driver with the most wins in United States Auto Club (USAC) history with 19.