IDP may refer to:
- Identity Provider (IdP), the source for validating user identity in a federated identity system.
- IDP Education, an educational organization based in Australia
- Independence (Amtrak station) code for Independence, Missouri, United States
- Individual Development Plan
- Individual defensive players, a Fantasy Football format
- Initial Detection Point (Telephony/Mobile)
- Insurance Data Processing
- Integrated Design Process
- Interac Direct Payment
- Intern Development Program
- Internal DisplayPort (iDP)
- Internally displaced person
- International Driving Permit
- International Dunhuang Project
- Intrusion Detection and Prevention
- Internet Datagram Protocol, a network layer protocol used in Xerox Network Systems
- Islamic Democratic Party (Maldives)
- Islamic Democratic Party (Rwanda)