EAI may refer to:
Organisations East Asia Institute (Korea), an independent, private think tank East Asia Institute (Ludwigshafen), Germany, a public research centre, part of the Ludwigshafen University of Applied Sciences Electronic Arts Intermix, an American art organization Electronic Associates, Inc., an American analog computer manufacturer Element AI, a former Canadian artificial intelligence company Engineering Animation, Inc., a defunct American visualization software company Excalibur Almaz Inc., former name of Manx private spaceflight company now called Excalibur Almaz Limited
Other uses Electroacoustic improvisation, a form of free improvisation in music, formerly known as live electronics Email address internationalization, the move to standardise email addresses globally Enterprise application integration, the use of software and computer systems' architectural principles to integrate a set of enterprise computer applications Erythema ab igne, a skin condition caused by long-term exposure to heat
See also AEI (disambiguation) Weatherhead East Asian Institute (WEAI), a community of scholars at Columbia University