This list of 1938 motorsport champions is a list of national or international auto racing series with a Championship decided by the points or positions earned by a driver from multiple races.
Open wheel racing Series Driver Season article AIACR European Championship Rudolf Caracciola 1938 Grand Prix season AAA National Championship Floyd Roberts 1938 AAA Championship Car season
Motorcycle Series Rider Season article Speedway World Championship Bluey Wilkinson 1938 Individual Speedway World Championship
Stock car Series Rider Season article Campeonato Argentino de Velocidad Ricardo Leopoldo Risatti 1938 Campeonato Argentino de Velocidad
See also List of motorsport championships Auto racing