- Unified State Examination in Russia
- unified strength theory
- unified system of photometry model
- unified taxation
- unified theory
- unified theory of acceptance and use of technology
- unified theory of interaction
- unified threat management
- unified threat management, UTM
- unified time
- unified vertical command system in Japan
- unifier
- unifilar
- unifilar electrodynamometer
- unifilar winding
- uniflow engine
- uniflower swisscentaury root
- unifoliate compound leaf
- uniform
- uniform absolute continuity
- uniform accelerated motion
- uniform acceleration
- uniform algebra
- uniform allocation
- uniform amplitude