| Acronym | Meaning |
| SCAR | Satellite Communications Applications Research (program) |
| SCAR | Scientific Commission on Antarctic Research (UK) |
| SCAR | Security Clearance Access Roster |
| SCAR | Security Control Assessor Representative (cybersecurity) |
| SCAR | Senate Committee on Agenda and Rules |
| SCAR | Small Claims Assessment Review |
| SCAR | SOF (Special Operation Forces) Combat Assault Rifle (USA/Belgium) |
| SCAR | Software Configuration Accounting Report |
| SCAR | Southwest Commercial Auto Recovery |
| SCAR | Special Forces Combat Assault Rifle |
| SCAR | Standing Committee on Agricultural Research |
| SCAR | Strike Chart of Autonomic Response |
| SCAR | Strike Control And Reconnaissance |
| SCAR | Strike Coordination and Reconnaissance (US DoD doctrine for joint fire support) |
| SCAR | Subcontractor Corrective Action Report |
| SCAR | Subsequent Contract Application Review |
| SCAR | Supersonic Cruise Aircraft Research |
| SCAR | Supplier Corrective Action Request (Lucas Aerospace) |
| SCAR | Support, Collection, Assessment and Reporting |
| SCAR | Suspected Child Abuse Report |