Idea (disambiguation)
- Bright Automotive
- David Crocker
- Diversity, equity, inclusion and access
- Eyedea
- Fiat Idea
- Figure (music)
- General Idea
- Greek military junta of 1967–74
- I.DE.A Institute
- IDEA (journal)
- IDEA League
- IDEA Public Schools
- IDEAS (disambiguation)
- Idea (TV special)
- Idea (album)
- Idea (classical element)
- Idea (genus)
- Idea (news agency)
- Idea (political party)
- Idea (supermarkets)
- Idea Cellular
- Idea Records
- Idea Vilariño
- Idea Zee Cinestars
- IdeaPad
- Ideas (disambiguation)
- Identity and Action
- Individuals with Disabilities Education Act
- Institute for Dynamic Educational Advancement
- IntelliJ IDEA
- Intelligent Design and Evolution Awareness Center
- International Data Encryption Algorithm
- International Deaf Education Association
- International Design Excellence Awards
- International Institute for Democracy and Electoral Assistance
- Local Government Improvement and Development
- Megali Idea
- Motif (music)
- New Idea
- Szeged Idea
- The Idea (musical)
- Wisconsin Idea
- Wrong Idea