John David Judd is a Formula One engineer from England. He is co-founder with Jack Brabham of Engine Developments Ltd., known for designing and developing Formula One engines. He worked closely with Jack Brabham in the 1960s, contributed to championship-winning engines, and later supplied engines to several F1 teams. His company also competed in IndyCar, touring cars, and Le Mans racing. Engine Developments Ltd. are manufacturers of Judd engines.
- Occupation
- engineer
- Citizenship
- United Kingdom
- Born
- April 9, 1942
