ECB may refer to:

Organizations

* European Central Bank * European Chemicals Bureau of the European Commission * ECB Project (Emergency Capacity Building Project), to improve humanitarian response * England and Wales Cricket Board * Emirates Cricket Board * East Coast Bays AFC, a New Zealand football club * Environmental Control Board, New York City, US * Equatorial Commercial Bank, later Spire Bank, Kenya

Education

* Environmental Campus Birkenfeld of the Trier University of Applied Sciences, Rhineland-Palatinate, Germany * Wisconsin Educational Communications Board, US * Government Engineering College Bikaner, Rajasthan, India

Technology

* Electronic codebook, a block cipher encryption mode * Electronically controlled brake, Toyota * Europe Card Bus, a 1977 8-bit computer bus * Ethylene copolymer bitumen, for waterproofing * Entity–control–boundary, an architectural pattern in software design

Other uses

* East Coast Bays, Auckland, New Zealand * External commercial borrowing, in India * Reading electric multiple units, a class of trains {{disambiguation