| Acronym | Definition |
|---|
| ERR | Error |
| ERR | Error Queue |
| ERR | Epic Rock Radio (Internet radio) |
| ERR | European Respiratory Review (European Respiratory Society) |
| ERR | Error Log File |
| ERR | Employment Responsibilities and Rights |
| ERR | Equipment Repair Request |
| ERR | Economic Rate of Return |
| ERR | Estrogen-Related Receptor (biochemistry) |
| ERR | Eastern Railroad |
| ERR | Expected Rate of Return (finance/accounting) |
| ERR | Electronic Reading Room |
| ERR | Employee Rights and Responsibilities |
| ERR | Engineering Release Record |
| ERR | Extended Resource Room (education) |
| ERR | Elastic Round Robin |
| ERR | Epileptic Recruiting Rhythm |
| ERR | Extended Range Rocket |
| ERR | Exhaustive Round Robin |
| ERR | Equal, Round and Reactive (pupils) |
| ERR | Emergency Response Roster |
| ERR | Equivalent Range Rate |
| ERR | Elite Redbone Rangers (gaming clan) |
| ERR | Engineering Review Report |
| ERR | Engineering Revision Request |
| ERR | Economic Retention Requirement |
| ERR | Emergency Regional Reporting (System) |
| ERR | Equipment Restricted Route |