Eia or EIA may refer to:
Medicine Enzyme immunoassay Equine infectious anemia Exercise-induced anaphylaxis Exercise-induced asthma External iliac artery
Transport Edmonton International Airport, in Alberta, Canada Erbil International Airport, in Kurdistan Region, Iraq Evergreen International Airlines, an American airline
Other uses Early Iron Age, an archaeological period Economic Integration Agreement Eia, a former Medieval manor that is now part of Central London Electronic Industries Alliance, formerly Electronic Industries Association, an American trade organization EIA standards Emerging issues analysis Emirates Investment Authority Energy Information Administration of the United States Department of Energy Environmental impact assessment Environmental Investigation Agency, a British environmental organisation Equity-indexed annuity European Inventor Award, awarded annually by the European Patent Office International Anticommunist Entente (French: )
People with the surname Harald Eia (born 1966), Norwegian comedian Magnhild Eia (born 1960), Norwegian politician