Multi-headed can refer to:
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Polycephaly
Polycephaly is the condition of having more than one head. The term is derived from the Greek stems ''poly'' (Greek: "πολύ") meaning "many" and ''kephalē'' (Greek: "κεφαλή") meaning "head". A polycephalic organism may be thought ...
, the condition of having more than one head
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Lernaean Hydra
The Lernaean Hydra or Hydra of Lerna (), more often known simply as the Hydra, is a serpentine lake monster in Greek mythology and Roman mythology. Its lair was the lake of Lerna in the Argolid, which was also the site of the myth of the Dan ...
, an ancient serpent-like chthonic water beast that possessed numerous heads
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Multi-headed train, where two or more engines are used
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Multi-monitor
Multi-monitor, also called multi-display and multi-head, is the use of multiple physical display devices, such as Computer monitor, monitors, Television set, televisions, and Video projector, projectors, in order to increase the area available fo ...
, multiple physical display devices running on a single computer system
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