Galpin Auto Sports (or GAS) is an American custom car and automobile repair shop located in Van Nuys which specializes in customizing and remodeling vehicles specifically for their drivers. They also provide specialty parts and accessories. The shop was founded in 1946 by Frank Galpin and later purchased by Bert Boeckmann.

The Galpin GTR1 (sometimes referred to as the Galpin Ford GTR1) is a custom sports car based on the Ford GT developed and built by American automotive company Galpin Auto Sports. The car was unveiled at Pebble Beach in 2013. Galpin planned to make at least six cars in 2014, with the possibility of another 18 to follow, based on demand.