Look up complexity in Wiktionary, the free dictionary.
Complexity is the behaviour of a system whose components interact in multiple ways so possible interactions are difficult to describe.
Complexity may also refer to:
- Complexity (journal), a scientific journal
- Computational complexity, in computer science
- Game complexity, in combinatorial game theory
- Integer complexity, in number theory
- Language complexity, the notion that a component (e.g. phonology) of one natural language can be more complex than that of another, or that one language as a whole can be more complex than another
- Complexity Gaming, an American professional esports organization
- "Complexity", a song by Front Line Assembly from the 1997 re-release of the album The Initial Command
- "Complexity", a song by Eagles of Death Metal from the 2015 album Zipper Down
- "Complexities", a song by Daniel Caesar from the 2019 album Case Study 01
