CASM may refer to:
Education Centre for Aboriginal Studies in Music, an educational unit of the University of Adelaide, South Australia Certificate of Advanced Study in Mathematics, a former qualification gained from Cambridge University
Galleries and museums Canada Aviation and Space Museum, the national aviation history museum in Ottawa, Ontario, Canada Canadian Air and Space Conservancy, formerly Canadian Air and Space Museum, a former aviation museum in Toronto, Ontario, Canada Centre d'Art Santa Mònica, an art gallery in Barcelona, Spain
Other uses Centre for the Analysis of Social Media, a research unit of the UK think tank Demos Chinese Academy of Surveying and Mapping, a research organization in China Collaborative group on Artisanal and Small-Scale Mining, an association for artisanal mining Cost per Available Seat Mile, a measure of unit cost in the airline industry