UMS may refer to: Ulnar–mammary syndrome Underwriting Management System, for automated Insurance Underwriting Unfederated Malay States Unified Messaging (System, Server, or Service) Uniform Mark Scheme United Mexican States (official name of Mexico) UMS, abbreviation of "Universal Measurement System" used for Gross tonnage Universal Media Server Universal Media Studios Universal Mobile Systems Muhammadiyah University of Surakarta (Universitas Muhammadiyah Surakarta, in Indonesia) Universiti Malaysia Sabah (in Malaysia) University of Maine System University of Mississippi USB mass storage device class User-Mode Scheduling, Preemption (computing) UMS 1905 (Indonesian football club)