Promise, or personal commitment Contract, a legally binding exchange of promises Brand commitment Involuntary commitment, the use of legal means or forms to commit a person to a mental hospital, insane asylum, or psychiatric ward Ontological commitment, belief in an ontology in philosophy Organizational commitment Commitment scheme, in cryptography Kingsbury Commitment, the beginning of AT&T's monopoly in the telephone industry Climate commitment, a model of climate change Capital commitment, the capital committed by a Limited Partner in a Private Equity Fund or Real Estate Fund