| Acronym | Definition |
|---|
| EOC | End of Communication (computing) |
| EOC | Emergency Operations Center |
| EOC | Extension of Care (healthcare) |
| EOC | End Of Course |
| EOC | Evidence of Coverage (aka Explanation of Coverage; insurance) |
| EOC | Educational Opportunity Center |
| EOC | Equal Opportunities Commission (UK) |
| EOC | Equal Opportunity Compliance (various organizations) |
| EOC | Element of Cost (US DoD acquisition) |
| EOC | Extent of Condition (nuclear energy) |
| EOC | Eye of Cthulhu (Terraria) |
| EOC | Embedded Operations Channel |
| EOC | Epithelial Ovarian Cancer |
| EOC | Ethernet over Copper |
| EOC | End of Chain |
| EOC | End of Call |
| EOC | Emergency Operation Center |
| EOC | Empty Octal Constant |
| EOC | East Ohio Conference (United Methodist Church) |
| EOC | Economic Opportunity Council |
| EOC | Ensemble Orchestral Contemporain (France) |
| EOC | Environment of Care (JCAHO) |
| EOC | Emergency Operating Center |
| EOC | Eagle Owners Club (UK) |
| EOC | European Olympic Committees |
| EOC | Ethiopian Orthodox Church |
| EOC | Emergency Obstetric Care (maternal mortality) |
| EOC | Ethernet over Copper (telecommunications) |
| EOC | End Of Conversion |
| EOC | Energy Outreach Colorado (formerly Colorado Energy Assistance Foundation) |
| EOC | Earth Observation Center |
| EOC | End of Cycle |
| EOC | Economic Outlook Conference (various locations) |
| EOC | Electro-Optics Center (Freeport, PA) |
| EOC | Equipment Operational Capability (US DoD) |
| EOC | End Of Contract |
| EOC | Engine-Out Capability (US NASA) |
| EOC | Eastern Orthodox Church |
| EOC | Edge of Coverage (satellite communications) |
| EOC | Economy of Communion (charitable initiative for businesses) |
| EOC | Enemies of Carlotta |
| EOC | Executive Officer Committee (various organizations) |
| EOC | Emerging Organic Contaminant |
| EOC | Education Outreach Committee (various locations) |
| EOC | Evangelical Orthodox Church |
| EOC | Early Operational Capability |
| EOC | EOS Operations Center |
| EOC | Extensiveness of Comments |
| EOC | Emergency Operations Coordinator |
| EOC | Element Owners Club (Honda enthusiasts group) |
| EOC | Employee Owned Company |
| EOC | End Of Conversation |
| EOC | End of Chorus (guitar tablature) |
| EOC | Endometrioid Ovarian Cancer |
| EOC | Enemy Oil Committee |
| EOC | Economic Outpatient Care |
| EOC | European Orchid Council |
| EOC | End of Century |
| EOC | End Of Construction |
| EOC | Engine-Off Coasting (automobiles) |
| EOC | Enterprise Operation Center |
| EOC | Expeditionary Operations Center |
| EOC | Chief Equipment Operator (Naval Rating) |
| EOC | Embedded Overhead Channel (Alcatel) |
| EOC | Extended Operating Conditions |
| EOC | End Of Curve |
| EOC | English Outdoor Council |
| EOC | Educational Options Center (Riverside, CA, USA) |
| EOC | Engine Oil Cooling (radiator option) |
| EOC | End Office Code (telephony) |
| EOC | Error of Closure (used in closing an unclosed polygon created when determining a boundary and area) |
| EOC | Employee On Call |
| EOC | Enhanced Operational Capability |
| EOC | Engineering Operating Cycle |
| EOC | Episcopal Orthodox Church |
| EOC | Executive Oversight Council |
| EOC | Essential Operational Capability |
| EOC | Electronics Operations Center |
| EOC | Element Operations Center |
| EOC | Explosives Operations Center |
| EOC | Estimated Overall Cost |
| EOC | Electro-Optic Controller (Nortel) |
| EOC | Equipment Order Control (Alcatel) |
| EOC | Executive Operations Council |
| EOC | Extended/Engineered Operating/Overhaul Cycle |
| EOC | Equipment Operator Chief |
| EOC | End Operational Capability |
| EOC | Expense Object Code |
| EOC | Equipment Operations Center |
| EOC | Engine Out of Commission |
| EOC | Equipment Operations Control |
| EOC | Chief Engineering Aide (Naval Rating) |
| EOC | Enema of Choice |
| EOC | Enterprise Order Capture (software) |
| EOC | Elementary Operations Committee |