| Acronym | Definition |
|---|
| RR➣Relative Risk (medical/statistical) |
| RR➣Railroad |
| RR➣Road Runner |
| RR➣Resource Record |
| RR➣Range Rover (Land Rover) |
| RR➣Roraima (Brazil) |
| RR➣Risk Ratio |
| RR➣Rolls-Royce |
| RR➣Round Robin |
| RR➣Road Rules (MTV show) |
| RR➣Royal Rangers |
| RR➣Royal Rangers (Christian boy's group sponsored by the Assemblies of God) |
| RR➣Rapid Response (various organizations) |
| RR➣Rules and Regulations |
| RR➣Religious Right |
| RR➣Right Rear |
| RR➣Ranga Reddy (India) |
| RR➣Rachael Ray (TV talkshow) |
| RR➣Recommendations and Reports (various organizations) |
| RR➣Rapture Ready |
| RR➣Rural Residential (zoning; various locations) |
| RR➣Reading Recovery |
| RR➣Royal Rumble (World Wrestling Entertainment, Inc.) |
| RR➣Ronald Reagan |
| RR➣Response Rate |
| RR➣Rhodesian Ridgeback (dog breed) |
| RR➣Russian Roulette |
| RR➣Romper Room (TV show) |
| RR➣Resale Rights |
| RR➣Ranch Road (Texas) |
| RR➣Rate Ratio |
| RR➣Russian River (California) |
| RR➣Race Ready (motorcycles) |
| RR➣Regional Road (Canada) |
| RR➣Rate of Return |
| RR➣Randy Rhoads (guitarist in Ozzy Osbourne) |
| RR➣Riesgo Relativo (Spanish: relative risk) |
| RR➣Racing Replica (Desmosedici Ducati bike) |
| RR➣Right, Right |
| RR➣Range Rate |
| RR➣Rational Recovery (recovery program) |
| RR➣Roy Rogers |
| RR➣Rural Route |
| RR➣Rugrats |
| RR➣Ridge Runner |
| RR➣Race Relations |
| RR➣Ruff Ryders (band) |
| RR➣Reroute |
| RR➣Ridge Racer (video game) |
| RR➣Red Rooster |
| RR➣Reel-to-Reel |
| RR➣Run Rate (cricket) |
| RR➣Rock Ridge (Linux CD-Rom File System) |
| RR➣Rolling Rock (beer) |
| RR➣Web Reasoning and Rule Systems (conference) |
| RR➣Relapsing-Remitting (Multiple Sclerosis) |
| RR➣Rescue Rangers (cartoon) |
| RR➣Rumble Roses (game) |
| RR➣Recovery Room |
| RR➣Refractoriness |
| RR➣Return Result |
| RR➣Receiver Report (protocol) |
| RR➣Respiration Rate |
| RR➣Radio Relay |
| RR➣Regierungsrat (Austria, Europe) |
| RR➣Rest Room |
| RR➣Resource Room |
| RR➣Richie Rich |
| RR➣Red Rocket |
| RR➣Règlement des Radiocommunications (French: Radio Regulations; World Radiocommunication Conference; treaty) |
| RR➣Repetition Rate |
| RR➣Remove & Replace |
| RR➣Relative Rate |
| RR➣Registered Representative |
| RR➣Rebel Resistance (gaming) |
| RR➣Rest and Relaxation |
| RR➣RickRoll |
| RR➣Ribonucleotide Reductase |
| RR➣Radio Regulations (ITU) |
| RR➣Radio Resource |
| RR➣Resistance Retribution (video game) |
| RR➣Respiratory Rates |
| RR➣Rural Road |
| RR➣Response and Recovery |
| RR➣Route Reflector |
| RR➣Radio Rumantsch (Romansh Radio, Switzerland) |
| RR➣Rashtriya Rifles |
| RR➣Rocky Raccoon (Beatles song) |
| RR➣Ready Reserve |
| RR➣Random Ramblings |
| RR➣Retired Reserve |
| RR➣Ranger Rick |
| RR➣Reliability Run |
| RR➣Recoilless Rifle |
| RR➣Reserve Ratio (finance) |
| RR➣Receive Ready |
| RR➣Requirements Review |
| RR➣Recovery Repair |
| RR➣Remediation and Redevelopment (Wisconsin Department of Natural Resources) |
| RR➣Readiness Review |
| RR➣Ready Room (gaming, Natural Selection) |
| RR➣Remote Registry |
| RR➣Room to Read |
| RR➣Receiving Report |
| RR➣Relay Rack |
| RR➣Repair Request |
| RR➣Riva Rocci |
| RR➣Reregistered |
| RR➣Ring Return |
| RR➣Recall Rate |
| RR➣Retro-Rocket |
| RR➣Ragged Right (printing and publishing) |
| RR➣Radio Regulatory |
| RR➣Rain Rate (precipitation measurement) |
| RR➣Reattack Recommendation (US DoD) |
| RR➣Revelation Records (record label) |
| RR➣Rear-Engine Rear-Wheel-Drive |
| RR➣Reverse Repurchase |
| RR➣Restart Round (gaming) |
| RR➣Roaring Rapids (amusement park ride) |
| RR➣Redridge Mountains (gaming, World of Warcraft) |
| RR➣Reference Receiver |
| RR➣Rank Regression |
| RR➣Red Ribbon Army (gaming) |
| RR➣Reduced-Reference |
| RR➣Reporting Responsibility |
| RR➣Receive Ring |
| RR➣Rosenthal & Rosenthal |
| RR➣Road Robber |
| RR➣Radio Rack |
| RR➣Road Rover |
| RR➣Review and Release |
| RR➣Route Relay |
| RR➣Recruit Roll (US Navy) |
| RR➣Rocket Rods |
| RR➣Ripper Roo (Crash Bandicoot character) |
| RR➣Reverse Request |
| RR➣Relative Relief |
| RR➣Rendezvous Radar |
| RR➣Rejection Report |
| RR➣Riparian Reserves |
| RR➣Restart Recovery |
| RR➣R-to-R Interval (the cycle between two consecutive R-waves) |
| RR➣Reverse Relay |
| RR➣Right Recursive (grammar parsing) |
| RR➣Radiant Recovery |
| RR➣Register to Register Instruction |
| RR➣Reasoning and Rules |
| RR➣Reuse Ratio |
| RR➣Ruck Rover (Australian football position) |
| RR➣Roper Resources (oceanic equipment manufacturer; Canada) |
| RR➣Reference Reflector (Agilent) |
| RR➣Riparian Reaches |
| RR➣Robot Resources |
| RR➣Repetition Redundancy |
| RR➣Recharge Ratio |
| RR➣Regional Reinforcement |
| RR➣Refracted - Refracted |
| RR➣RivetRider (EC-130 special operations aircraft) |
| RR➣Residential Rough (HVAC) |
| RR➣Random Randumb (Slapstick & prank comedy web show) |
| RR➣Raze Resources (forum) |
| RR➣Refugees de Rwanda |
| RR➣Restoral/Reconfiguration |
| RR➣Rotary Rectifier |
| RR➣Renegotiation Regulation |
| RR➣Roaming Replicator |