U (disambiguation)
- "U" Is for Undertow
- Brillouin zone
- British Board of Film Classification
- Burmese name
- Burmese names
- Censorship in France
- Central Board of Film Certification
- Channel U (Singaporean TV channel)
- Comet
- CubeSat
- Dalton (unit)
- Film Censorship Board of Malaysia
- Haplogroup U (mtDNA)
- Heat transfer coefficient
- Hop (mixtape)
- International unit
- Kibi Line
- Kotex
- List of military time zones
- Lost Dogs (album)
- Motion picture content rating system
- Remain (KNK EP)
- S.E.S. (band)
- Sakurai Line
- Television content rating system
- The Enid
- The Myth Makers
- The U (disambiguation)
- The U (film)
- Transilien Line U
- Treasure (band)
- U
- U (Cyrillic)
- U (Incredible String Band album)
- U (Kendrick Lamar song)
- U (Los Angeles Railway)
- U (NiziU album)
- U (Super Junior song)
- U (TV channel)
- U (Tourist album)
- U (cuneiform)
- U (film)
- U (kana)
- U (streaming service)
- U (trans-Neptunian object)
- U Line
- U Mobile
- U and non-U English
- U class (disambiguation)
- U language
- U of Goryeo
- U, Federated States of Micronesia
- U-bend
- U-bolt
- UBV photometric system
- Underscore
- Understeer and oversteer
- Unicode
- Unilever
- Universitario de Deportes
- Universitatea Cluj
- University
- Univisión
- Uranium
- Ustaše
- Wii U
- Woo (Korean given name)
- Woo (Korean surname)
- YUV
- You (disambiguation)
- Yurikamome
- Ü (region)
- Ü-Tsang
- Ս
- ’u’