| Acronym | Definition |
|---|
| RAC | Real Application Cluster |
| RAC | Religious Action Center |
| RAC | Rent-A-Center |
| RAC | Royal Automobile Club (UK) |
| RAC | Reliability Analysis Center |
| RAC | Rent-A-Coder (freelancer matching service) |
| RAC | Ratchet and Clank (gaming) |
| RAC | Rural Assistance Center |
| RAC | Research Advisory Committee |
| RAC | Recovery Audit Contractors (CMS, Medicare program) |
| RAC | Rotaract |
| RAC | Railway Association of Canada |
| RAC | Recombinant-DNA Advisory Committee |
| RAC | Royal Agricultural College (Cirencester, UK) |
| RAC | Regional Advisory Council (Canada) |
| RAC | Recent Average Credit (distributive computing) |
| RAC | Research Advisory Council |
| RAC | Room Air Conditioner |
| RAC | Royal Armoured Corps |
| RAC | Resident Agent in Charge |
| RAC | Regional Activity Center |
| RAC | Rock Against Communism |
| RAC | Risk Assessment Code |
| RAC | Regulatory Affairs Certified |
| RAC | Raw Agricultural Commodity |
| RAC | Resource Assessment Commission |
| RAC | Remedial Action Contract |
| RAC | Reflexology Association of Canada (Winnipeg, MB, Canada) |
| RAC | Refund Anticipation Check (tax refund) |
| RAC | Retirement Annuity Contract (UK) |
| RAC | Rubber Association of Canada |
| RAC | Radiation Advisory Committee (EPA) |
| RAC | Resource Allocation Committee |
| RAC | Reservation Against Cancellation (Indian railways reservation) |
| RAC | Royal Arch Chapter (Freemasonry) |
| RAC | Research Analysis Corporation |
| RAC | Repair Action |
| RAC | Routing Area Code |
| RAC | Riverine Assault Craft |
| RAC | Resident Advisory Council (Chamber of Commerce) |
| RAC | Regional Administrative Conference |
| RAC | Relocation Appraisers and Consultants, Inc. |
| RAC | Radio Amateurs of/du Canada |
| RAC | Regional Area Coordinator |
| RAC | Run After Catch (football) |
| RAC | Remote Access Computer |
| RAC | Reference Air Concentration |
| RAC | Rigid Array Carrier (space shuttle) |
| RAC | Regional Asbestos Coordinator |
| RAC | Response Action Coordinator |
| RAC | Rapid Action Change |
| RAC | Royal Air Corps |
| RAC | Registered Addiction Counselor |
| RAC | Republic Aviation Corporation |
| RAC | Redmond Air Center (A Forest Service Smokejumper Base in Redmond, Oregon) |
| RAC | Resource Availability Confirm (Cisco) |
| RAC | Reflective Array Compressor |
| RAC | Risk Assessment Council |
| RAC | Radio Astronomy Controller |
| RAC | Right Antecubital (IV site) |
| RAC | Road Analysis Control (Caterpillar) |
| RAC | Ring Access Controller (Cisco) |
| RAC | Rigid Aluminum Conduit |
| RAC | Rehabilitation Accreditation Commission |
| RAC | Regional Air Commander |
| RAC | Remedy Authorized Consultant |
| RAC | Recuperation and Care Unit (FDNY) |
| RAC | Ryan Aeronautical Center |
| RAC | Radar Azimuth Converter |
| RAC | Regimento de Artilharia de Costa |
| RAC | Reactor Accident Calculation |
| RAC | Riverside Athletic Club (Willimantic, CT) |
| RAC | Rehab and Care (FDNY unit) |
| RAC | Rules of the Air and Traffic Services |
| RAC | Revenue Anticipation Certificate |
| RAC | Air Post Postal Tax (Scott Catalogue prefix; philately) |
| RAC | Racine, WI USA - Batten Airport (Airport Code) |
| RAC | Radar Area Correlation |
| RAC | Reno Assistance Center (Nevada, USA) |
| RAC | Recent Advances in Constraints |
| RAC | Readiness Acceptance Check |
| RAC | Regional Agricultural College (Philippines) |
| RAC | Relative Angle Change |
| RAC | Refueling Area Commander |
| RAC | Regional Adjudication Center (US immigration) |
| RAC | Relay Access Card (Hekimian) |
| RAC | Request for Authority to Contract |
| RAC | Request Altitude Change |
| RAC | Routing and Access Controller (Telcordia) |
| RAC | Royal Air Command |
| RAC | Reserve Assignment Channel (Sprint) |
| RAC | Regional Audit Consultant |
| RAC | Readiness Assistance Conservation |
| RAC | Requisition Advice Care |
| RAC | Repair, Alignment & Calibration |
| RAC | Reject Action Code |
| RAC | Regional Agenda Conference |
| RAC | Reykjavik Activity Center (Iceland) |
| RAC | Reporting Activity Code |