{{distinguish|text=E0 (disambiguation) (E followed by zero)}} {{wiktionary|eo|EO}} '''Eo''' or '''EO''' may refer to: {{TOC right}}
== Businesses and organizations == * Education Otherwise, a home education organization * Elevorganisasjonen, a Norwegian student organization * Entrepreneurs' Organization, a nonprofit network * Evangelische Omroep, a public broadcaster in the Netherlands * Executive Outcomes, a South African military company * Express One International, an airline * Hewa Bora Airways (IATA code EO), a defunct airline in the Democratic Republic of the Congo
==Language== * Eo (constructed language) * Esperanto (ISO code EO), a constructed language * eo (digraph), represents a single or two vowels in some languages * Eo (hangul) vowel in Korean Hangul
==Science and technology== === Computing === * EO Personal Communicator, an early tablet computer produced by AT&T subsidiary EO, Inc. * Eight Ones, a character code * A line of tablet computers made by TabletKiosk
===Other uses in science and technology=== * "eo-" (derived from "Eos", meaning "dawn"), used to describe many early animals in the fossil record ** Eoarchean, the first era of the Archean Eon * Earth observation * Electro-optics * Eosinophilic oesophagitis, or Eosinophilic esophagitis, an allergic inflammatory condition of the esophagus * Ethylene oxide, a chemical compound * Extremal optimization, a type of optimization heuristic inspired by self-organized criticality
== Other uses == * Eastern Orthodoxy, a major Christian branch ** Eastern Orthodox Church * ''EO'' (film), a 2022 film * EO (rapper), a rapper from London * Eo (river), a river in Spain * Eo (instrument), a Korean percussion instrument * East Otago, part of New Zealand's South Island * ''Captain EO'', a 3D film * Equal opportunity, a term related to civil rights * Equipment Operator (US Navy), a Seabee occupational rating in the U.S. Navy * Executive Officer, a person responsible for the running of an organization * Executive order (United States), a directive issued by the President of the United States * Hyundai EO, as a Hyundai Elexio short name for the Chinese EV market
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