| Acronym | Definition |
|---|
| PWIS➣Paint-Wetting Impairment Substances |
| PWIS➣Personal, Workplace and Institutional Services (Fidelity Investments) |
| PWIS➣Prisoner of War Information System |
| PWIS➣Possession with Intent to Supply (drug charge) |
| PWIS➣Prisoner of War Interrogation Section (German WWII POW camp, England) |
| PWIS➣Politics with International Studies (University of Greenwich; London, England, UK) |
| PWIS➣Public Works Information System |