ECU

ECU may refer to:

Currencies

• European Currency Unit, precursor to the euro
• Écu, French coins of the 13th–19th centuries

Technology

• Electronic control unit
• Engine control unit

Universities

• East Carolina University, in Greenville, North Carolina, United States
• East Central University, in Ada, Oklahoma, United States
• Edith Cowan University, in Perth, Australia
• Emily Carr University of Art and Design, in Vancouver, Canada

Other uses

• Eastman Credit Union, an American credit union
• ÉCU The European Independent Film Festival
• Ecuador's country code
• Eighth Creative Union of MEPhI, a Russian theatre company
• End Citizens United, a PAC working to get big money out of politics
• European Chess Union
• Evidence Control Unit
• Extensor carpi ulnaris muscle
• Extreme close-up