UL
- 3271 Ul
- Cambridge University Library
- Dietary Reference Intake
- Microlitre
- New Hampshire Union Leader
- Oliveira de Azeméis, Santiago de Riba-Ul, Ul, Macinhata da Seixa e Madail
- SriLankan Airlines
- UL (The Belgariad)
- UL (safety organization)
- UNIX
- UOL (disambiguation)
- Ul (mythology)
- Ull (disambiguation)
- Ultralight aviation
- Unia Lewicy
- Unilever
- University of Leicester
- University of Leoben
- University of Lethbridge
- University of Liberia
- University of Lima
- University of Limerick
- University of Limpopo
- University of Lincoln
- University of Linz
- University of Lisbon
- University of Ljubljana
- University of London
- University of Louisiana at Lafayette
- Université Laval
- Unlimited liability
- Unordered list
- Unwritten Law
- Uplink
- Upload
- Upplands Lokaltrafik
- Uttarakhand