Mutual aid may refer to:
- Mutual aid (organization theory), a tenet of organization theories entailing a voluntary reciprocal exchange of resources and services for mutual benefit
- Mutual Aid: A Factor of Evolution, a book detailing the role of mutual aid in the evolution of animals and humans by anarchist philosopher Peter Kropotkin
- Mutual aid (emergency services), an agreement between emergency responders
- Mutual aid, an element of social work with groups
- Mutual aid society, an organization formed for the benefit of members
- Billion Dollar Gift and Mutual Aid: Canada's gift of $4 billion to Britain in the Second World War
See also
- Mutualism (biology), a concept of biological interaction
- Mutualism (economic theory), an anarchist economic theory
