UMA
- Arab Maghreb Union
- Argentine Mathematical Union
- UMA Engineering Ltd.
- UMa
- Ukrainian Museum-Archives
- Uma (disambiguation)
- Umeå School of Architecture
- Unidentified Mysterious Animal
- Unified managed account
- Unified memory architecture
- Uniform memory access
- Universal Music Australia
- University of Madeira
- University of Maine at Augusta
- University of Mannheim
- University of Mohaghegh Ardabili
- University of Málaga
- Unlicensed Mobile Access
- Upper memory area
- Urban Music Awards
- User-Managed Access