This list of 1946 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.

Series	Driver	Season article
AAA National Championship	Ted Horn	1946 AAA Championship Car season

Series	Driver	Season article
Turismo Carretera	Oscar Alfredo Gálvez	1946 Turismo Carretera

• List of motorsport championships
• Auto racing