Cycle (disambiguation)

The term cycle may refer to:
;In-universe
* Base cycle
* Bicycle
* Carbon cycle life form
* Computational cycle
* Cycle
* Cycle (unit)
* Cycle of causality
* Cycle of Creation
* Cycle of Renewal
* Cyclic pulsar
* Cyclic wormhole
* Cycling
* Cycling station
* Daily cycle
* Decompression cycle
* Diagnostic cycle
* Duty cycle
* Fusion cycle
* Hibernation cycle (sleep cycle)
* Incubation cycle
* Intermittent cyclical vortex
* Lang Cycle fusion engine
* Life cycle
* Lunar cycle
* Maintenance cycle
* Mating cycle (Cycle of mating)
* Maturation cycle
* Nitrogen cycle
* Production cycle
* Quadcycle
* Recharge cycle
* Regeneration cycle
* Regenerative cycle
* REM cycle
* Reproductive cycle
* Restart cycle
* Scan cycle
* Teracycle
* Trading cycle
* Transporter cycle (Transport cycle)
* Tricycle
* Tricyclic input manifold
* Tricyclic plasma drive
* Weather cycle
;Real world
* Ring cycle, a reference from a deleted scene
;See also
* Circle