U
| Abbreviation | Full Form |
|---|---|
| U/A | Underwriting Account, Unit of Account |
| U/D | Under Deck |
| U/W | Underwriter |
| UCE | Unforeseen Circumstances Excepted |
| UCP | Uniform Customs and Practice (of Documentary Credits) |
| UDEAC | Central African Customs and Economic Union |
| UDEAO | Union Douane et Economique d’Afrique Occidentale |
| ULCC | Ultra Large Crude Carrier |
| ULD | Unit Load Device, container used in air freight |
| UN | United Nations |
| UNCITRAL | The United Nations Commission on International Trade Law |
| UNCTAD | The United Nations Conference on Trade & Development |
| UNCTAD | United Nations Conference on Trade and Development |
| UNECE | United Nations Economic Commission for Europe |
| UNECLAC | United Nations Economic Commission for Latin America and the Caribbean |
| UNIDO | United Nations Industrial Development Organization |
| UNSD | United Nations Statistics Division |
| UPI | Unified Payment Interface |
| UPU | Universal Postal Union |
| URC | Uniform Rules for Collections |
| URCG | Uniform Rules Contract Guarantees |
| USD | United States Dollar |
| USP | Unique Selling Proposition |