IDEC
# IDEC

IDEC may refer to:

* Biogen Idec, a biotechnology company
* IDEC Corporation, a Japanese manufacturer of automation and control products
* International Democratic Education Conference, an annual academic and youth conference
* Toralizumab (IDEC 131), an antibody and an immunosuppressive drug
* The sponsor name given to ocean racing trimarans skippered by French yachtsman Francis Joyon:
   * IDEC-1 [fr], a 75ft trimaran built in 1985
   * IDEC 2, a 97ft trimaran built in 2007
   * IDEC 3, a 103ft trimaran built in 2006
