The word handle may refer to any of several things:

• a device attached to a movable object, that is gripped to move or use the object; see Handle (grip)
• (especially in citizens' band radio and online) a pseudonym; see User name
• (in computer science) a reference to a position in computer memory; see Reference (computer science) and Smart pointer
• (in mathematics) part of a handlebody or of a manifold decomposed using handle decomposition; see Handle (mathematics)