IDF (disambiguation)
- AIDC F-CK-1 Ching-kuo
- Glossary of military abbreviations
- IDF
- IDF1
- Iceland Defense Force
- Idiofa Airport
- Immune Deficiency Foundation
- Indian Defence Force
- Indirect fire
- Intel Developer Forum
- Intensity-duration-frequency curve
- Interaction Design Foundation
- Intermediate Data Format
- Intermediate distribution frame
- International DOI Foundation
- International Day of Forests
- International Diabetes Federation
- Irish Defence Forces
- Israeli Diving Federation
- Île-de-France