ECR
ECR may refer to:
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Associations
- Efficient Consumer Response, a trade and industry body
- US Institute for Environmental Conflict Resolution
- European Conservatives and Reformists Party, a European political party
- European Conservatives and Reformists, the affiliated European Parliament group
- European Centre for Restoration Techniques (ECR)
Radio
- East Coast Radio (South Africa), a South African radio station (FM 94-95)
- East Coast Radio (Ireland), an Irish radio station
Transportation
- East Central Railway zone, part of the Indian rail network
- East Coast Rail, Australian rail freight operator
- East Coast Road, a scenic beachway along the Coromandel coast of South India
- East Cross Route in London
- East Croydon station, a railway station and tram stop in Croydon, England
- Euro Cargo Rail, rail freight operator based in France
- Route ECR, SamTrans bus route, San Mateo County, California, United States
Science and technology
- Electron cyclotron resonance, a phenomenon in physics
- European Congress of Radiology
Engineering
- Electrical contact resistance, the surface-structure-dependent resistance at a contact interface
- Engineering Change Request, a request for a change in the specification(s) - see Change request or Engineering change order
Other
- Early Career Researcher
- ECR Engines, the engine-building division of Richard Childress Racing
- Ed Carpenter Racing, an American racing team in the IndyCar Series
- Electronic Cash Register
- El Camino Real (disambiguation)
- Engine control room, shipbuilding abbreviation