R (disambiguation)

• "R" Is for Ricochet
• ATC code R
• Arginine
• Basic reproduction number
• Coefficient of relationship
• Effective reproduction number
• Gas constant
• Haplogroup R (Y-DNA)
• Haplogroup R (mtDNA)
• IBM System R
• International Phonetic Alphabet
• List of military time zones
• Model R (disambiguation)
• Motion Picture Association of America film rating system
• Net reproduction rate
• Pearson product-moment correlation coefficient
• QuakeNet
• R
• R (New York City Subway service)
• R (cable operator)
• R (complexity)
• R (cross section ratio)
• R (film)
• R (programming language)
• R class (disambiguation)
• R-value (insulation)
• R-value (soils)
• R. (album)
• RR (disambiguation)
• RRR (disambiguation)
• RRRR (disambiguation)
• Rajawali Televisi
• Rankine scale
• Rated R (Queens of the Stone Age album)
• Reconnaissance aircraft
• Registered trademark symbol
• Republican Party (United States)
• Restricted airspace
• Right (direction)
• Ritardando
• Roentgen (unit)
• Rydberg constant
• Rydberg unit of energy
• Ryder
• R°
• R·Type
• Réaumur scale
• Rømer scale
• Side chain
• South African rand
• Spectral resolution
• The Chase (Doctor Who)
• The Crown
• The World Is Not Enough
• The three Rs
• Type R (disambiguation)
• Volkswagen Golf
• alveolar trill
• electronic component
• fracture mechanics
• hook flash
• list of PlayStation games (M–Z)
• r/K selection theory
• real number
• refrigerant
• stellar classification