IIP may refer to:
Organizations
editScience
edit- Idiopathic interstitial pneumonia
- Internet Imaging Protocol, an imaging protocol implemented on top of HTTP
- Input Intercept Point (Signal Processing): IIP2 or IIP3
- I2P, the Invisible Internet Project, an anonymous communications network
- II-p or IIp, a subtype of Type II supernova
- Ion imprinted polymer