Grant Langston (born 17 June 1982), is a South African former professional motocross racer.

Born in Durban, South Africa, Langston began competing in the world championships in 1998, and by 2000, he had won the F.I.M.

national championship in the Motocross Class for 450cc machines, riding for Yamaha.

Langston's racing career was cut short due to a cancerous tumor in his eye, diagnosed in early 2008.

Langston owns a large multi-line motorcycle dealership in Perris, California.