Constraint may refer to:

• Constraint (mathematics)
• Constraint algorithm (mechanics) such as SHAKE, or LINCS
• Constraint (design)
  • Loading gauge versus structure gauge
• Constraint (information theory)
• Theory of Constraints, in business management
• Constraint satisfaction, in computer science
• A constraint on constrained writing, in literature
  • For example, Oulipian constraints

See also

• Restraint