The 2017 Formula 4 United States Championship season was the second season of the United States Formula 4 Championship, a motor racing series regulated according to FIA Formula 4 regulations and sanctioned by SCCA Pro Racing, the professional racing division of the Sports Car Club of America. It began on 8 April at Homestead-Miami Speedway and finished on 22 October at the Circuit of the Americas, after seven triple header rounds.[1][2]