Look up ideas in Wiktionary, the free dictionary.
IDEAS may stand for:
- I-DEAS (Integrated Design and Engineering Analysis Software), a computer-aided design software package
- IDEAS For Us, American environmental organization
- IDEAS Group, International Defence Enterprise Architecture Specification For Exchange group, developers of the IDEAS ontological foundation
- IDEAS UAV, a Chinese unmanned aerial vehicle
- Institute for Democracy and Economic Affairs, a Malaysian libertarian think tank
- International Defence Exhibition and Seminar, a defence sector event, held biennially, in Pakistan
- IDEAS, a database maintained by the Research Papers in Economics project