EROS

EROS may refer to:

Science and technology

 * Center for Earth Resources Observation and Science, the US national archive of remotely sensed images of the Earth's land surface
 * Encyclopedia of Reagents for Organic Synthesis, containing a description of the use of all reagents in organic chemistry
 * Extremely Reliable Operating System, an operating system developed by The EROS Group, the University of Pennsylvania and Johns Hopkins University
 * Earth Resources Observation Satellite, a series of Israeli commercial Earth observation satellites
 * Event-related optical signal, a brain-scanning signal

Other uses

 * Eelam Revolutionary Organisation of Students, a militant Tamil separatist group in Sri Lanka
 * JDT 1650R EROS, a Mini-MAX aircraft