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