Suppression may refer to:
- Thought suppression, the psychological process of deliberately trying to stop thinking about certain thoughts.
- Suppression of emotion.
- Suppression of behaviour
- Distinct aspects of civil oppression, generally censorship, and non-lethal human rights abuses.
- Appetite suppression
- Symptom suppression, the prevention of the expression of symptoms by allopathic medicines, which is believed to further derange the health