ADAC Formula 4 was a racing series regulated according to FIA Formula 4 regulations. The inaugural season was the 2015 ADAC Formula 4. It replaced the ADAC Formel Masters, held from 2008 to 2014.

FIA Formula 4, also called FIA F4, is an open-wheel racing car category intended for junior drivers. There is no global championship, but rather individual nations or regions can host their own championships in compliance with a universal set of rules and specifications.