Red Line
- 5SOS5
- Alan Ko
- All Red Line
- Aŭtazavodskaja line
- B Line (Los Angeles Metro)
- Baltimore Light RailLink
- Barcelona Metro line 1
- Capital MetroRail
- Central line (London Underground)
- Chiang Mai light rail transit
- Dark Red Line (Bangkok)
- Ella Chen
- F Line (RTD)
- IRT Broadway–Seventh Avenue Line
- Ilmari Kianto
- KA Commuter line Jakarta Kota–Bogor
- Leninskaya Line
- Light Red Line (Bangkok)
- Line 1 (Beijing Subway)
- Line 1 (Daegu Metro)
- Line 1 (Kharkiv Metro)
- Line 1 (O-Train)
- Line 1 (Saint Petersburg Metro)
- Line 1 (Shanghai Metro)
- Line 1 of the Guadalajara urban rail system
- Line 2 (Athens Metro)
- Line 2 (Madrid Metro)
- Line 2 (Riyadh Metro)
- Line 3 (São Paulo Metro)
- Line 5 (Chennai Metro)
- Line 5 (Guangzhou Metro)
- Line C (Prague Metro)
- Lynx Red Line
- Lyon Metro Line A
- MAX Red Line
- METRORail Red Line
- Masoud Kimiai
- Metro Red Line (Minnesota)
- Midōsuji Line
- Milan Metro Line 1
- North–South Line (Singapore)
- Operation Manta
- Operation Red Line
- PATCO Speedline
- RER A
- Rapid Ride
- Red Line (1959 film)
- Red Line (1996 film)
- Red Line (2012 film)
- Red Line (BART)
- Red Line (Baltimore)
- Red Line (CTA)
- Red Line (Calgary)
- Red Line (DART)
- Red Line (Delhi Metro)
- Red Line (Doha Metro)
- Red Line (Dubai Metro)
- Red Line (Hyderabad Metro)
- Red Line (IndyGo)
- Red Line (Jerusalem Light Rail)
- Red Line (Lisbon Metro)
- Red Line (Luas)
- Red Line (Lucknow Metro)
- Red Line (MARTA)
- Red Line (MBTA)
- Red Line (Mexico City Metro)
- Red Line (Mexico City Metrobús)
- Red Line (Montreal Metro)
- Red Line (Mumbai Metro)
- Red Line (Namibia)
- Red Line (Namma Metro)
- Red Line (Pittsburgh)
- Red Line (RTA Rapid Transit)
- Red Line (Rio de Janeiro)
- Red Line (Sound Transit)
- Red Line (St. Louis MetroLink)
- Red Line (Stockholm Metro)
- Red Line (TRAX)
- Red Line (Tel Aviv Light Rail)
- Red Line (The Vine)
- Red Line (Washington Metro)
- Red Line (album)
- Red Line Agreement
- Red Line Synthetic Oil Corporation
- Red Line, Iowa
- Red Lines (Bangkok)
- Red line (Kaohsiung MRT)
- Red line (Lagos Transit)
- Red line (hockey)
- Red line (phrase)
- Red lines in the Russo-Ukrainian War
- Shinbundang Line
- Sokolnicheskaya line
- Special Event Line (San Diego Trolley)
- Sviatoshynsko–Brovarska line
- T Third Street
- Tamsui–Xinyi line
- The Red Line
- The Red Line (TV series)
- Tokyo Metro Marunouchi Line
- Tsuen Wan line
- Tyne and Wear Metro
- U2 (Berlin U-Bahn)
- Valley Metro Rail
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