- ZSL stands for Zoological Society of London (UK)
- ZSL stands for Zjednoczone Stronnictwo Ludowe (Polish: United Peasant Party)
- ZSL stands for Zylog Systems Limited (Edison, New Jersey)
- ZSL stands for Zero Slot LAN
- ZSL stands for Zenith Software Limited (est. 1996)
- ZSL stands for Zuari Seeds Limited (India)
Abbreviations And Their Meaning