CAMS
- Calexico Mission School
- California Academy of Mathematics and Science
- Cam (disambiguation)
- Cameras for All-Sky Meteor Surveillance
- Camshaft
- Cell adhesion molecule
- Center for Advanced Media Studies
- Cham Albanians
- Chantiers Aéro-Maritimes de la Seine
- Child and Adolescent Mental Health Services
- Chinese Academy of Management Science
- Chinese Academy of Medical Sciences
- Coalition Against Militarism in Our Schools
- Computer Age Management Services
- Copernicus Atmosphere Monitoring Service
- Motorsport Australia
- Spring-loaded camming device