| Acronym | Definition |
|---|
| IPIP➣Improving Performance in Practice (quality improvement initiative) |
| IPIP➣Internet Protocol Integration Project |
| IPIP➣Internet Protocol Tunneling Through Internet Protocol |
| IPIP➣International Personality Item Pool |
| IPIP➣Idrætspolitisk Idéprogram (Denmark) |
| IPIP➣Immediate Past International President |
| IPIP➣Infrastructure Programme Implementation Plan (Zambia) |
| IPIP➣Internet Protocol within Internet Protocol Encapsulation Protocol (computing) |
| IPIP➣Individual Professional Improvement Plan (teachers) |