IPIS
| Acronym | Definition |
|---|---|
| IPIS | International Peace Information Service (Antwerp, Belgium) |
| IPIS | Institute for Political and International Studies (est. 1983; Tehran, Iran) |
| IPIS | Instrument Pilot Instructor School |
| IPIS | Intellectual Property Insurance Services (Louisville, KY) |
| IPIS | Interactive Parameter Identification System (NASA) |
| IPIS | Incomplete Pulmonary Infarction Syndrome (heart and lungs) |