ECN

ECN may refer to:

Organizations and companies

• ECN (TV station), former name of NEN, in New South Wales, Australia
• ECN Capital, a Canadian financing company
• Electoral Commission of Namibia
• Energy Research Centre of the Netherlands (Dutch: Energieonderzoek Centrum Nederland)
• Environmental Change Network, of the British Natural Environment Research Council
• Ercan International Airport, in Northern Cyprus
• European Competition Network
• European Crowdfunding Network

Science and technology

• Electrochemical noise, fluctuations of current and potential

Computing

• Electronic communication network, for trading of financial products
• Explicit Congestion Notification, in network congestion
• Encoding Control Notation, a formal language that is part of the Abstract Syntax Notation One
• Ethernet Consist Network, protocol used in train communications

Other uses

• Engineering change notice, used to implement changes to components or products
• Enhanced capital note, a fixed-income instrument
• Eastman Color Negative, a photographic processing system