| Acronym | Definition |
|---|
| ZSL➣Zoological Society of London (UK) |
| ZSL➣Zjednoczone Stronnictwo Ludowe (Polish: United Peasant Party) |
| ZSL➣Zylog Systems Limited (Edison, New Jersey) |
| ZSL➣Zero Slot LAN |
| ZSL➣Zenith Software Limited (est. 1996) |
| ZSL➣Zuari Seeds Limited (India) |