ECN

• Electronic Communication Network
• Energy research Centre of the Netherlands, the largest Dutch Centre for Energy Studies
• Engineering Change Notice, Change memorandum to technical design
• Ercan Airport, a regional airport of the Turkish Republic of Northern Cyprus after the IATA code
• Ernst Cassirer estate
• Euro City Night Line, a European night train long-distance transport
• European Competition Network
• Explicit Congestion Notification, extension of the network protocol TCP / IP overload control in networks
• EC Bad Nauheim, Ice Hockey Club

EC- N stands for:

• Napo Province in Ecuador according to ISO 3166-2

• Disambiguation
• Abbreviation