IDEC

IDEC can refer to:

• Biogen Idec, a biotechnology company
• IDEC Corporation, a 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
• Trimaran IDEC, a ship that won the round-the-world record in 2008