| Acronym | Meaning |
| IPO | Indian Intellectual Property Office |
| IPO | Indian Patent Office (India) |
| IPO | Indian Postal Order |
| IPO | Indirect Program Office |
| IPO | Individual Performance Objective |
| IPO | Industrial Preparedness Operations |
| IPO | Industrial Property Officer (NASA) |
| IPO | Industry Portfolio Office (Canada) |
| IPO | Information Programs Office (US State Department) |
| IPO | Information Protection Office (USAF) |
| IPO | Institutional Program Office |
| IPO | Instrument Project Office |
| IPO | Integrated Product Ownership (defense program management) |
| IPO | Intellectual Property Office |
| IPO | Interagency Program Office (US DoD an US VA) |
| IPO | Interim Possession Order (property rights; UK) |
| IPO | International Program Office (US DoD) |
| IPO | International Programs Office (US Navy) |
| IPO | Investment Promotion Office (various organizations) |
| IPO | Iowa Publications Online (State Library of Iowa) |