The Entertainments National Service Association (ENSA) was an organisation that provided entertainment for British armed forces personnel during World War II.
ENSA may also refer to:
- ENSA (gene)
- École Nationale des Sciences Appliquées d'Oujda, an engineering school in Morocco
- European Neutron Scattering Association, a contributor to the International Reactor Innovative and Secure design project
- Svea Airport (ICAO airport code: ENSA) in Norway
- ENSA – Seguros de Angola