| UAV | Unmanned Aerial Vehicle |
| UDC | Upper Division Clerk |
| UFO | Unidentified Flying Object |
| UGC | University Grants Commission |
| UHT | Ultra High Temperature |
| ULFA | United Liberation Front of Asom |
| UMPP | Ultra Mega Power Project |
| UNC | United Nagar Council |
| UNCTAD | United Nations Conference on Trade and Development |
| UNDP | United Nations Development Programme |
| UNEF | United Nations Emergency Force |
| UNEP | United Nations Environment Programme |
| UNESCO | United Nations Educational, Scientific and Cultural Organi-sation |
| UNFPA | United Nations for Population Activities |
| UNHCR | United Nations High Commission for Refugees |
| UNI | United News of India |
| UNICEF | United Nations International Children's Emergency Fund (now, 'United Nations Children's Fund') |
| UNO | United Nations Organisation |
| UNU | United Nations University |
| UPA | United Progressive Alliance |
| UPDS | United People’s Democratic Solidarity |
| UPS | Uninterrupted Power Supply |
| UPSC | Union Public Service Commission |
| URL | Uniform Resource Locator |
| USP | Unique Selling Proposition |
| USSR | Union of Soviet Socialist Republic |
| UTI | Unit Trust of India |
| VAT | Value Added Tax |
| VC | Vice-Chancellor/Victoria Cross |
| VCR | Video Cassette Recorder |
| VDIS | Voluntary Disclosure of Income Scheme |
| VIP | Very Important Person |
| VIRUS | Vital Information Resources Under Siege |
| VPP | Value Payable Post |
| VRML | Virtual Reality Modelling Language |
| VRS | Voluntary Retirement Scheme |
| VSNL | Videsh Sanchar Nigam Limited |
| VSSC | Vikram Sarabhai Space Centre |
