ECL may refer to:

Science and technology

  • Electrochemiluminescence
  • Enhanced chemiluminescence
  • Emitter-coupled logic
  • Enterochromaffin-like cell

Computing

  • ECL programming language, an extensible programming language
  • ECL (data-centric programming language)
  • Embeddable Common Lisp

Sport

  • East Cornwall League, an English football league
  • Eastern Colored League, a defunct American baseball league
  • Eastern Counties Football League, in England
  • European Cricket League, a professional cricket league organized by ICC member federations
  • UEFA Europa Conference League, annual football club competition organised by UEFA
  • European Champions League (table tennis), annual table tennis club competition
  • Entertainers Cricket League (Cricket), an Indian cricket league organized by social media celebrities

Other uses

  • Eccleston Park railway station, in England
  • Ecolab, a sanitation supply company
  • École centrale de Lyon, a graduate engineering school in Lyon, France
  • Educational Community License, a software license
  • Exit Control List, system of border control maintained by the Government of Pakistan
  • Extended collective licensing, collective copyright and related rights laws and licensing agreement