Gordon Goodwin's Big Phat Band, or simply The Big Phat Band, is an 18-piece jazz orchestra led by Gordon Goodwin that combines the big band swing of the 1930s and 1940s with contemporary music such as funk and jazz fusion. Since its origin, the Big Phat Band has received several Grammy Awards and many Grammy nominations.

Its first album, Swingin' for the Fences, was the first recording released on DVD-Audio and the first DVD-Audio to be nominated for two Grammy Awards.

When he founded the Big Phat Band in 1999, Goodwin was working in Hollywood as a composer for Warner Brothers cartoons. His first attraction to big band music was at the age of 13 when he heard Count Basie.