SASE may refer to: Sarajevo Stock Exchange, in Bosnia and Herzegovina Secure access service edge, a networking and security technology Self-addressed stamped envelope, used for expediting a reply via mail Self-amplified spontaneous emission, a process by which a laser beam is created Snow and Avalanche Study Establishment, a laboratory of the India Defence Research & Development Organization Specific application service element, in the OSI computer networking model See also Sase (disambiguation)