Successor may refer to:

• An entity that comes after another (see Succession (disambiguation))

• The Successor (1996 film), a film including Laura Girling
• The Successor (2023 film), a French drama film
• The Successor (TV program), a 2007 Israeli television program

• Successor (EP), an EP by Sonata Arctica
• Successor (album), an album by Dedekind Cut

• A successor cardinal
• A successor ordinal
• The successor function, the primitive defined as
• A successor (graph theory), a node following the current one in a path

• The Successor (novel), a 2003 novel by Ismail Kadare
• The Diadochi, or Successors to Alexander the Great
• Successor (horse), an American Thoroughbred racehorse
• Successor, the working name for the class of British ballistic missile submarines, since renamed the Dreadnought-class
• Khalifa, a Muslim who is considered a political-religious successor to the Islamic prophet Muhammad
• Spiritual successor, a successor to a work of fiction which does not build upon the storyline established by a previous work
• "The Successor" (short story), 1951 short story by Paul Bowles

• Success (disambiguation)
• Legal successor (disambiguation)