In control theory, and especially stability theory, a stability criterion establishes when a system is stable. A number of stability criteria are in common use:
- Circle criterion
- Jury stability criterion
- Liénard–Chipart criterion
- Nyquist stability criterion
- Routh–Hurwitz stability criterion
- Vakhitov–Kolokolov stability criterion
- Barkhausen stability criterion
Stability may also be determined by means of root locus analysis.