IIP
- Bureau of International Information Programs
- Canadian Immigrant Investor Program
- I2P
- IIPS (disambiguation)
- Idiopathic interstitial pneumonia
- Index of industrial production
- Indian Inclusive Party
- Indian Institute of Packaging
- Indian Institute of Petroleum
- Interest in possession trust
- International Ice Patrol
- International Institute for Peace
- International Inventories Programme
- International investment position
- Internet Imaging Protocol
- Investors In People
- Irish Independence Party
- Second-order intercept point
- Third-order intercept point
- Type II supernova