| Acronym | Definition |
|---|
| ZRL➣Zurich Research Laboratory |
| ZRL➣Zero Risk Level |
| ZRL➣Zweckverband Schienenpersonennahverkehr Ruhr-Lippe (German transportation system) |
| ZRL➣Zambezi Resources, Ltd. (Zambia) |
| ZRL➣Zambia Railways Ltd. (Kabwe, Zambia) |
| ZRL➣Zero Reference Level (cardiography) |