IDF or idf may refer to:

Defence forces

* Irish Defence Forces * Israel Defense Forces *

Iceland Defense Force The Iceland Defense Force ( is, Varnarlið Íslands; IDF) was a military command of the United States Armed Forces from 1951 to 2006. The IDF, created at the request of NATO, came into existence when the United States signed an agreement to p ...

, of the US Armed Forces, 1951-2006 * Indian Defence Force, a part-time force, 1917

Organizations

Israeli Diving Federation Israeli Diving Federation ( he, ההתאחדות הישראלית לצלילה, Hitahdut Haisraelit Letslila) (TIDF) is a non-governmental SCUBA diving training organization based in Israel. History The Gulf of Eilat is one of the most popular ...

* Interaction Design Foundation *

International Diabetes Federation The International Diabetes Federation (IDF) is an umbrella organization of over 230 national diabetes associations in more than 160 countries and territories. The Federation has been leading the global diabetes community since 1950. It is headqua ...

International DOI Foundation A digital object identifier (DOI) is a persistent identifier or handle used to uniquely identify various objects, standardized by the International Organization for Standardization (ISO). DOIs are an implementation of the Handle System; they ...

, of the digital object identifier

Places

Idiofa Airport Idiofa Airport is an airport serving Idiofa, a city in Kwilu Province, Democratic Republic of the Congo. See also * * * Transport in the Democratic Republic of the Congo * List of airports in the Democratic Republic of the Congo This is a list ...

, Idiofa, Democratic Republic of the Congo (IATA airport code) *Île-de-France, region of France

Other uses

*Intensity-duration-frequency curve, for rainfall *Intel Developer Forum *Intermediate Data Format, a file format for electronic design automation *Intermediate distribution frame, for telecommunications wiring *AIDC F-CK-1 Ching-kuo, Indigenous Defense Fighter, Taiwanese aircraft *Inverse Document Frequency, a factor in the tf–idf principle *Indirect fire (''see also'' Glossary of military abbreviations#I)