EO

EO may refer to:

Politics

• Executive order (United States), a directive issued by the President of the United States

Companies 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 Officer, a person responsible for the running of an organization
• Executive Outcomes, a South African military company
• Express One International, an airline
• Hewa Bora Airways, EO in IATA code

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 meanings

• Eo (constructed language)
• Earth observation
• Electro-optics
• Eo (river), a river in Spain
• Captain EO, a 3-D film
• Equal opportunity, a term related to civil rights
• Equipment Operator (US Navy), a Seabee occupational rating in the U.S. Navy
• Ethylene oxide, a chemical compound
• Esperanto, a language, EO in ISO code
• Eosinophilic oesophagitis, or Eosinophilic esophagitis, an allergic inflammatory condition of the esophagus
• Extremal optimization, a type of optimization heuristic inspired by self-organized criticality
• "eo-", a prefix derived from "Eos", meaning "dawn", and used to describe many early animals in the fossil record