English abbreviations from ecj to eco
- ECJ (European Court of Justice)
- ECJS (European Center for Jewish Students)
- ECK (Error ChecK)
- ECKD (Extended Count Key Data)
- ECL (Emitter Coupled Logic (electronics))
- ECLC (Early Care and Learning Council)
- ECLD (Electro-chemical Liquid Deposition Based)
- ECM (Electronic countermeasures)
- ECMA (European Computer Manufacturers Association)
- ECMEA (Erie County Music Educators Association)
- ECMIT (Emirates College for Management & Information Technology)
- ECMS (Early Childhood Management Services)
- ECN (Explicit Congestion Notification)
- ECNPA (Eastern Canadian News Photographers Association)
- ECO (El Encanto Airport)