The Mummy's Tomb is a 1942 American horror film directed by Harold Young and starring Lon Chaney Jr. as Kharis the mummy. Taking place 30 years after the events of The Mummy's Hand, where Andoheb (George Zucco) has survived and plans revenge on Stephen Banning (Dick Foran) and his entire family in Mapleton, Massachusetts. With the help of the high priest Mehemet Bey (Turhan Bey), Andoheb and the mummy Kharis (Lon Chaney Jr.) Bey takes up a job as a caretaker of a graveyard. At the first full moon, the mummy is fed tanna leaves which allow him to break into the Banning residence and kill the now elderly Stephen. Banning's son then seeks assistance from Babe Hanson (Wallace Ford), one of the members of the original Banning expedition to Egypt to stop Andoheb and Kharis.

Lon Chaney Jr. had renewed his contract with Universal Pictures in 1942 and had his first role as the mummy Kharis in The Mummy's Tomb, a role he would reprise in the film's sequels The Mummy's Ghost and The Mummy's Curse. The film was shot on June 1 and ended in mid-June 1942, not including footage taken from the previous film in the series The Mummy's Hand as well as Frankenstein.