YSL
- Communist Party of Australia
- Saint-Léonard Aerodrome
- Socialist Youth League (United States)
- YSL Records
- YSL Records racketeering trial
- YSL Residences
- Yankee Stadium Legacy
- Yarrow Shipbuilders
- Yolŋu Sign Language
- Young Socialist League
- Yugoslav Second League
- Yugoslav Sign Language
- Yves Saint Laurent (designer)
- Yves Saint Laurent (disambiguation)
- Yves Saint Laurent (fashion house)