The term system may refer to:
- System, a set of entities, real or abstract, comprising a whole
- Biological system, a group of organs
- Computer system, the combination of hardware and software
- Ecosystem, an entity comprising a large number of organisms and their environment
- Meta-system, something composed of multiple smaller systems
- Physical system, the portion of the physical universe chosen for analysis
- System (C standard library), a computer function used to execute subprocesses and commands
- System (typeface), a raster font packaged with Windows XP
- System (Seal album), a 2007 album by Seal
- System of a Down, an American rock band formed in 1995
- Systema, Russian martial art
- "System", a 2007 song on the Alone I Play album, by Jonathan Davis from Korn
The System may refer to:
- The System (band), American funk pop band of the 1980s
- The System (satellite radio)
- The System, comics by American author Peter Kuper
