Polymorphism, polymorphic, polymorph, polymorphous, or polymorphy may refer to:
Computing
Science
Biology
Other sciences
Fiction
- Polymorph, a shapeshifting being in:
- "Polymorph" (Red Dwarf), third episode of series III of the science fiction sitcom
- "", fourth episode of series VI of the science fiction sitcom
- Polymorph (novel), a 1997 cyberpunk novel by Scott Westerfeld
- Polymorph, a magical spell in many fantasy role-playing games that transforms a target into one of many different creatures for a period of time
See also