| RAT | Radar Avvistamento Terrestre 
| Others |
| RAT | Radical Adversial Terminators
| Others |
| RAT | Radical Anxiety Termination
| Others |
| RAT | Radically Altered Transportation
| Others |
| RAT | Radio Access Technologies
| Others |
| RAT | Radio Access Technology
| Others |
| RAT | Radiological Assistance Team
| Others |
| RAT | Raduzhny Airport
| Others |
| RAT | Raduzhnyi, Russia
| Others |
| RAT | Ram Air Turbine
| Others |
| RAT | Rambunctious, Adventurous, Terrific
| Others |
| RAT | Randall Adventure Team
| Others |
| RAT | Random Access Texture
| Others |
| RAT | Random Access Time
| Others |
| RAT | Rapid Aging Test
| Others |
| RAT | Rapid Air Tranfer
| Others |
| RAT | Rapid Assault Tactics
| Others |
| RAT | Rapid Assessment Team
| Others |
| RAT | Rapid Attack Tactics
| Others |
| RAT | Rapid Attack Truck
| Others |
| RAT | Rare and Treacherous
| Others |
| RAT | Rating System File
| Others |
| RAT | Rational Choice Theory
| Others |
| RAT | RATS Datafile
| Others |
| RAT | Reactor Analysis Tool
| Others |
| RAT | Read And Think
| Others |
| RAT | Reading At Twilight
| Others |
| RAT | Reaktivnaia Aviacionnaia Torpeda
| Others |
| RAT | Real Alternative Theatre
| Others |
| RAT | Real Application Testing
| Others |
| RAT | Really Active Teacher
| Others |
| RAT | Really Awful Tucker
| Others |
| RAT | Rear Armrest Tray
| Others |
| RAT | Recognise Assess Treat
| Others |
| RAT | Recognize Assess Treat
| Others |
| RAT | recombinant human antithrombin
| Others |
| RAT | Record of Achievement and Targets
| Others |
| RAT | Recovery And Transformation
| Others |
| RAT | Recovery Assistance Team
| Others |
| RAT | Recreated Analog Technologies
| Others |
| RAT | Recruit At Tech
| Others |
| RAT | Recruit At Training
| Others |
| RAT | Recruitment Assessment Team
| Others |
| RAT | Recruits At Training
| Others |
| RAT | Recycled Active Temple
| Others |
| RAT | Recycled Automotive Transport
| Others |
| RAT | Recycling Action Team
| Others |
| RAT | Red Automotive Technologies
| Others |
| RAT | Reduce All Theft
| Others |
| RAT | Reflex Angle Theorem
| Others |
| RAT | Regia Autonoma de Transport
| Others |
| RAT | Regional Action Team
| Others |
| RAT | Regional Alternative Theatre
| Others |
| RAT | Register Alias Table
| Others |
| RAT | Reglamento Aeroterrestre
| Others |
| RAT | Regression Analysis Tool
| Others |
| RAT | Reject All Tobacco
| Others |
| RAT | Release Assist Tool
| Others |
| RAT | Release Audit Tool
| Others |
| RAT | Relevant Appropriable and Transferable
| Others |
| RAT | Remote Access Terminal
| Others |
| RAT | Remote Access Tool
| Others |
| RAT | Remote Access Trojan
| Others |
| RAT | Remote Administration Tool
| Others |
| RAT | Remove All Targets
| Others |
| RAT | Remuneration And Terms (of service committee)
| Others |
| RAT | Renaissance Action Team
| Others |
| RAT | Renderman Artist Tools
| Others |
| RAT | Repair Of Assistive Technology
| Others |
| RAT | Reserve Access Team
| Others |
| RAT | Restore After Termination
| Others |
| RAT | Rheumatoid Arthritis Test
| Others |
| RAT | Ride All The Time
| Others |
| RAT | Rider's Association of Triumph
| Others |
| RAT | Right Action Taken
| Others |
| RAT | Right After Torrance
| Others |
| RAT | Right Angled Triangle
| Others |
| RAT | Right Animal Treatment
| Others |
| RAT | Right At Torrance
| Others |
| RAT | Right atrial tachycardia
| Others |
| RAT | Rippen Artistic Talent
| Others |
| RAT | Risk Averse Trader
| Others |
| RAT | Road Anomalies Tour
| Others |
| RAT | Roadside Anomaly Tour
| Others |
| RAT | Robberies And Thefts
| Others |
| RAT | Robust Audio Tool
| Others |
| RAT | Robust Audio Tools
| Others |
| RAT | Rock Abrasion Tool
| Others |
| RAT | Rocket Aided Takeoff
| Others |
| RAT | Rookie Auburn Tiger
| Others |
| RAT | Rookie Auburn Tigers
| Others |
| RAT | Room And Transportation
| Others |
| RAT | Rotary Acronym Time
| Others |
| RAT | Rotterdam Achter Tralies
| Others |
| RAT | Rough And Tumble
| Others |
| RAT | Route Attribute Table
| Others |
| RAT | Router Audit Tool
| Others |
| RAT | Routing Addressing Table
| Others |
| RAT | Run And Tell
| Others |
| RAT | The Rathdrum
| Others |
| RAT | The Rathskeller Restaurant
| Others |