UMS may refer to:
- Universal Motion Simulator, at the Centre for Intelligent Systems Research
- Underwriting Management System, for automated Insurance Underwriting
- Unified Messaging (System, Server, or Service)
- Uniform Mark Scheme
- Union Makes Strength (UMS), Indonesian football clubs
- United Mexican States (Official name of Mexico)
- UMS, French abbreviation (of "Universal Measurement System") used for Gross tonnage
- Universal Media Studios
- Universiti Malaysia Sabah (in Malaysia)
- Unmanned Machinery Space as used in reference to ships engine-rooms
- USB mass storage device class
- User-Mode Scheduling