EACS

EACS may refer to:


 * East African Community Summit, summits of the intergovernmental East African Community
 * East Allen County Schools, a public schools district in Indiana, United States
 * Electric Air Control System, a fuel system for Suzuki motorbikes
 * European AIDS Clinical Society, a Brussels-based non-profit that provides clinical recommendations for care across Europe
 * European Association for Chinese Studies, a Paris-based international scholarly association