Cycle or cyclic may refer to:
In transportation:
- Motorcycle
- Bicycle
- Cycling, the act of riding a bicycle or tricycle
- Tricycle
In music
- Cycle (music), a section of a piece that is repeated or repeatable
- Cyclic form, a technique of construction involving multiple sections or movements
- Cycles (The Doobie Brothers album)
- Cycles (Frank Sinatra album)
In mathematics and physics:
- Cycle (mathematics), into which any permutation may be decomposed
- Algebraic cycle and Hodge cycle, homology classes in algebraic geometry
- Cycle (graph theory), a nontrivial path from a node to itself
- Cyclic (mathematics), terms in mathematics beginning with cyclic or cycle
- Turn (geometry) or cycle, a unit of plane angle equal to 360 degrees
- Algebraic cycle and Hodge cycle, homology classes in algebraic geometry