American Quartet

American Quartet may refer to:


 * American Quartet (novel), a mystery novel by Warren Adler
 * String Quartet No. 12 (Dvořák) by Antonín Dvořák, nicknamed the American Quartet
 * American Quartet (ensemble), a vocal group that recorded from 1899 to 1925
 * A band led by jazz pianist Keith Jarrett in the 1970s

Also:
 * The American Quartette, a 1920s vocal quartet