EAS

EAS may refer to: Emergency Alert System, a wireless emergency warning system in the United States

Academics

 * East Asian studies, an academic field
 * Early American Studies, an academic journal
 * Early Admissions Scheme (Hong Kong), a defunct university entrance program
 * Escola Alegria de Saber, a network of Brazilian international schools in Japan

Aeronautics

 * EAS Europe Airlines, a defunct French airline
 * EAS Airlines, a defunct Nigerian airline
 * Equivalent airspeed
 * Essential Air Service, a U.S. government program
 * San Sebastián Airport, in Spain

Government

 * East Asia Summit, a regional diplomatic forum
 * Emergency Alert System, United States' national warning system
 * European External Action Service, the diplomatic service and foreign and defence ministry of the European Union
 * Enterprise Estonia, abbreviated EAS in Estonian, Estonian national foundation that aims to develop Estonian economy
 * Employment Agency Standards Inspectorate, United Kingdom

Science

 * 5-epiaristolochene synthase, an enzyme
 * Eastern Analytical Symposium, an American analytical chemistry organization
 * Electric acoustic stimulation
 * Electrophilic aromatic substitution, an organic reaction
 * European Astronomical Society
 * Extensive air shower, a cosmic ray shower
 * Extended area service, in telecommunications
 * External anal sphincter

Technology

 * EAS3, a software toolkit for storing and processing binary data
 * Electronic Air Suspension, a type of vehicle suspension
 * Electronic article surveillance
 * Enterprise application software
 * Exchange ActiveSync, a data synchronization protocol

Other uses

 * EAS (album), a 2000 album by Japanese rock band Fanatic Crisis
 * EAS (nutrition brand), an American sports nutrition company
 * Encyclopedia of American Studies
 * End of Active Service, in the military
 * European Academy of Sociology, a fellowship of sociologists
 * East Side Access, a public works project in New York City
 * Hellenic Defence Systems (EAS), formed by the merger in 2004 of the Greek defence companies EBO and Pyrkal