EOP

EOP may refer to:

• Earth orientation parameters
• Electroosmotic pump
• Emergency operations plan (US)
• European Opera-directing Prize
• Exchange Online Protection, part of Microsoft's Exchange Online family
• Executive Office of the President of the United States
• External occipital protuberance
• Hellenic Cycling Federation ({{langx|el|Ελληνικη Ομοσπονδια Ποδηλασιας|link=no}}), the governing body of cycle racing in Greece
• Early Oil Project, the development of the Chirag oilfield
• Enhanced opportunity partner, NATO Enhanced Partnership Opportunities interoperability program
• Escalation of Privilege, a cybersecurity threat
• Endrogenous opioid peptides