R1

• .r01
• 1R (disambiguation)
• AEG R.I
• AH-IV
• ATC code R01
• Airport Line (SEPTA)
• BBC Radio 1
• Beriev R-1
• Carnegie Classification of Institutions of Higher Education
• DFW R.I
• DSC-R1
• DVD region code
• DeepSeek-R1
• FN FAL
• HMS Caprice
• Haplogroup R1 (Y-DNA)
• Imperial Tobacco
• Insect wing
• International Air Transport Association
• Jaguar R1
• LCDR R1 class
• LNER Class R1
• Linke-Hofmann R.I
• Multi-frequency signaling
• Nuro
• Ora R1
• PRR R1
• Polikarpov R-1
• Praga R1
• R-1 (missile)
• R-1 Federation
• R-1 motorway (Spain)
• R-1 tank
• R-1 visa
• R01 grant
• R1 (New York City Subway car)
• R1 (RER Vaud)
• R1 (expert system)
• R1 (nuclear reactor)
• R1 King George Blvd
• R1 expressway (Czech Republic)
• R1 expressway (Slovakia)
• R1 plasmid
• R1 ring road (Belgium)
• R1 road (Zimbabwe)
• R1 space
• R1–RG1 (Rodalies de Catalunya)
• Rabbit r1
• Radial Road 1
• Radio One (New Zealand)
• Raytheon Sentinel
• Research I university
• Rheintochter
• Rice Institute Computer
• Rivian
• Rogue One
• SECR R1 class
• SEPTA Main Line
• SIN R1
• Samsung YP-R1
• Subaru R1
• USS R-1 (SS-78)
• United States
• Visa (document)
• Yamaha YZF-R1