CMSA

CMSA may refer to:


 * Chain Makers' and Strikers' Association, a former British trade union
 * Chicago Math and Science Academy
 * China Manned Space Agency, the human spaceflight agency of China
 * China Maritime Safety Administration
 * Classical Mandolin Society of America
 * Colleges of Medicine of South Africa
 * Combinatorial Mathematics Society of Australasia
 * Commercial Mortgage Securities Association
 * Congressional Muslim Staffer Association
 * Consolidated Metropolitan Statistical Area