CUSA

CUSA may refer to:


 * Kues, town in Germany
 * Nicholas of Cusa (1401–1464), German philosopher, theologian, jurist, and astronomer
 * Carleton University Students' Association, Carleton University in Ottawa, Ontario, Canada
 * Colleges and Universities Sports Association, a collegiate athletic conference in the Philippines
 * Conference USA, a collegiate athletic conference in the United States
 * Council of Unions of South Africa, a former South African trade union federation
 * Canada and the United States; see
 * Cavitron Ultrasonic Surgical Aspirator