The Amilcar CGS Grand Sport was a popular inter war lightweight sports car, manufactured by the French automobile maker Amilcar between 1923 and 1925.

Its 1074cc, 30bhp, side valve engine gave it a listed top speed in excess of 70mph, and could be tuned for better performance. Four wheel brakes were fitted.

A lowered chassis version, the CGSS, the second S standing for surbaisse, was also made.

Around 4700 were made.