ECN

The acronym ECN can refer for:

Explicit Congestion Notification - this is a method of network congestion avoidance
Electronic Communication Network - this term is typically used for computerized financial trading systems.
Energy research Centre of the Netherlands (Energieonderzoek Centrum Nederland)

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ECN

See also: ECN, Acronym, Electronic Communication Network, Energy research Centre of the Netherlands, Network congestion avoidance, Three letter acronym