PISL
| Acronym | Definition |
|---|---|
| PISL | Prithvi Information Solutions Ltd. |
| PISL | Prithvi Information Solutions Limited (est. 1998; Hyderabad, India) |
| PISL | Plains Indian Sign Language (communiaction) |
| PISL | Phoenix International School of Law (Arizona) |
| PISL | Phoenix Inspection Systems, Ltd. (Cheshire, UK) |
| PISL | Plan International Sri Lanka |