- interactive polynomial time equals polynomial space problem
- interactive polynomial time equals polynomial space problem, IP=PSPACE problem
- interactive processing
- interactive programming
- interactive proof
- interactive proofs
- interactive protocol
- interactive question answering
- Interactive Retrieval System
- interactive robot
- interactive seepage
- interactive system
- interactive technique
- interactive television
- interactive television, ITV
- interactive theory of personality vulnerability to depression
- interactive translator
- interactive TV advertising
- interactive visualization
- interactive whiteboard
- interactome
- interactomics
- Inter-African Coffee Organization
- Interafrican Phytosanitary Council Convention
- Inter-Agency space Debris Coordination