USL may refer to:
Arts and entertainment
- Underground Sound of Lisbon, a Portuguese dance music project
- Urban Strawberry Lunch, a band from Liverpool
Companies
- United Spirits Limited, India
- Former United States Lines shipping company
Computing
Education
- University of Louisiana at Lafayette, formerly University of Southwestern Louisiana, US
- University of Saint Louis Tuguegarao, Philippines
Sports
- Ultimate Soccer League
- United Soccer League (disambiguation)
- Former US United Soccer League (1984–85)
- United Soccer League, the current governing body of several lower-level U.S.-based leagues
- The following North American leagues operated by the United Soccer League organization:
- USL Championship, the second level of the U.S. men's soccer league system, which used the "United Soccer League" name from 2015–2018
- USL League One, the third level of said system
- USL League Two, the fourth level of said system
- USL Super League, a planned U.S. top-level women's league set to start play in 2024
- United States League, a baseball league
- Uttarakhand Super League, an association football league in India
Languages
Other uses
- Social Liberal Union, a political alliance in Romania
- Upper Specification Limit, statistical measure used in a Process Window Index bounded by UCL/LCL and USL/LSL