"Chattanooga Choo Choo" is a 1941 song written by Mack Gordon and composed by Harry Warren. It was originally recorded as a big band/swing tune by Glenn Miller and His Orchestra and featured in the 1941 movie Sun Valley Serenade. It was the first song to receive a gold record, presented by RCA Victor in 1942, for sales of 1.2 million copies.The song was an extended production number in the 20th Century Fox film Sun Valley Serenade. The Glenn Miller recording became the #1 song across the United States on December 7, 1941, and remained at #1 for nine weeks on the Billboard Best Sellers chart. The composition was nominated for an Academy Award in 1941 for Best Song from a movie.

In October 1944, a new recording by Captain Glenn Miller and the Army Air Forces Training Command Orchestra featuring Sgt. Ray McKinley and the Crew Chiefs on vocals was released as a V-Disc by the U.S. War Department, one of a series of recordings sent free by the U.S. War Department to overseas military personnel during World War II.

In 1996, the 1941 recording of "Chattanooga Choo Choo" by Glenn Miller and His Orchestra was inducted into the Grammy Hall of Fame.