Chad Johnston
| Johnston at Talladega Superspeedway in 2016 | |
| Personal information | |
|---|---|
| Birth name | Chad A. Johnston | 
| Born | May 22, 1980 Cayuga, Indiana, U.S. | 
| Sport | |
| Country | United States | 
| Sport | Motor racing | 
| League | NASCAR Cup Series | 
| Team | No. 84 Legacy Motor Club | 
Chad A. Johnston (born May 22, 1980) is an American NASCAR crew chief who works for Legacy Motor Club as their Manager of Race Engineering as well as the crew chief of their No. 84 Toyota Camry XSE in the NASCAR Cup Series driven by Jimmie Johnson.
He was previously a crew chief in the Cup Series for Chip Ganassi Racing (the No. 42 of Kyle Larson and later Matt Kenseth), Stewart-Haas Racing (the No. 14 of Tony Stewart and the No. 41 of Ryan Preece), and Michael Waltrip Racing (the No. 56 of Martin Truex Jr.) and the NASCAR Truck Series for David Gilliland Racing. Johnston was Truex's engineer prior to his promotion by MWR to crew chief midway through the 2011 season.