Alan Arthur Gustafson, born August 5, 1975, in Ormond Beach, Florida, is an American NASCAR Cup Series crew chief. He currently works for Hendrick Motorsports as the crew chief of their No. 9 Chevrolet Camaro ZL1, driven by Chase Elliott. Together, Gustafson and Elliott secured the 2020 NASCAR Cup Series championship.

Gustafson's racing career began at age eight, assisting his childhood friend Casey Yunick with go-karts, and later with late models and legends cars.