IDP
- Democratic and Progressive Italy
- DisplayPort
- Fantasy football (American)
- IDP Education
- IPD (disambiguation)
- Identity provider
- Independence (Amtrak station)
- Independent Democratic Party (disambiguation)
- Individual development plan
- Initial Detection Point (telephony)
- Intelligent Document Processing
- Interac Direct Payment
- Intern Development Program
- Internally displaced person
- International Dialing Prefix
- International Driving Permit
- International Dunhuang Project
- Internet Datagram Protocol
- Intrinsically disordered proteins
- Intrusion Detection and Prevention Systems
- Iowa Democratic Party
- Islamic Dawa Party
- Islamic Democratic Party (Maldives)
- Islamic Democratic Party (Rwanda)