Eidos may refer to:
*
Eidos (philosophy), a Greek term meaning "form" "essence", "type" or "species"
*
Eidos Interactive, a British video game publisher
**
SCi Entertainment Group, its parent, which was briefly renamed Eidos Ltd.
**
Eidos Hungary, a defunct Hungarian development studio formerly of Eidos Interactive
**
Eidos-Montréal, a Canadian development studio of the same group
*
EidosMedia, an Italian publishing software company.
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