| Acronym | Definition |
|---|
| COR | Corrected/Correction |
| COR | Correct |
| COR | Corner |
| COR | Corinthians |
| COR | Corresponding |
| COR | Corpus |
| COR | Cortisol (hormone) |
| COR | Corrosive (fire diamond warning code) |
| COR | Coroner |
| COR | Contracting Officer's Representative |
| COR | Church of the Resurrection |
| COR | Certificate of Recognition |
| CoR | Committee of Regions (EU) |
| COR | Coefficient of Restitution |
| COR | Council of Representatives |
| COR | Church of the Redeemer |
| COR | Class Of Restriction (insurance) |
| COR | Certificate of Registration |
| COR | Coalition on Revival |
| COR | Committee on Research (AISC) |
| COR | Contracting Officers Representative |
| COR | Center of Rotation (medical scanning equipment) |
| COR | Carrier Operated Relay (two-way radio) |
| COR | Computers and Operations Research |
| COR | Chartered Organization Representative (Boy Scouts of America) |
| COR | Corporate Staff |
| COR | Career Opportunities in Research Education and Training |
| COR | Confederation of Regions Party (Canadian Political Party) |
| COR | Change Order Request |
| COR | Condition of Readiness (tropical storms) |
| COR | College Of Radiographers |
| COR | Central Office of Record (NSA) |
| COR | City of Reno (Nevada) |
| COR | Catholic Organizations for Renewal |
| COR | Center for Orthopaedic Research |
| COR | Council of Orthodox Rabbis |
| COR | Cordoba, Cordoba, Argentina - Pajas Blancas (Airport Code) |
| COR | Circular Of Requirements |
| COR | Corrected Observation (METAR code) |
| COR | Course Of Reaction |
| COR | Communications Outage Recorder |
| COR | Center for Ophthalmic Research |
| COR | Champions of Ruin (Dungeons & Dragons roleplay book) |
| COR | Coefficient of Reliability |
| COR | Coordinate Report |
| COR | Change of Rater |
| COR | Cargo Outturn Report |
| COR | Continental Operations Range |
| COR | Commander of the Relief (military) |
| COR | Combined Operation Ratio |
| COR | Core Operations Report |
| COR | Command Operationally Ready |
| COR | Continental Operating Range |
| COR | Continuity of Operations Redesign |
| COR | Council of Record (United States District Court code) |
| COR | Common Order Repository |
| COR | Chief of Office of Record |
| COR | Central Office Repairperson |
| COR | Complete Oral Rehabilitation |
| COR | Call out Request |