Tetralogy (disambiguation)

A tetralogy is a set of four dramatic or literary works.

Tetralogy may also refer to:
 * Ingo tetralogy, a series of children's novels by author Helen Dunmore.
 * Ware Tetralogy, a series of science fiction novels by author Rudy Rucker
 * Tetralogy (album), an album by trombonist Paul Rutherford
 * Tetralogy of Fallot, a congenital heart defect