USL

• Underground Sound of Lisbon, a Portuguese dance music project
• Urban Strawberry Lunch, a band from Liverpool

• United Spirits Limited, India
• Former United States Lines shipping company

• Universal Systems Language
• Former US Unix System Laboratories

• University of Louisiana at Lafayette, formerly University of Southwestern Louisiana, US
• University of Saint Louis Tuguegarao, Philippines

• Ukrainian Second League, an association football league in Ukraine
• 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

• Ukrainian Sign Language

• 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

• United States League (disambiguation)

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