Red Line may refer to:
Arts and entertainment
Films
Music
- Red Line (album), by Trans Am, 2000
- "Red Line", by 5 Seconds Of Sunmer song from 5SOS5
- Red Line (For TA)", a 2009 song by Ayumi Hamasaki, a B-side of "You Were..."
- The Red Line, a 1978 opera by Aulis Sallinen based on the 1909 novel
Other media
Public transit
Many bus, rail, subway, and tram lines around the world are either officially or colloquially named the "Red Line". These include:
Africa
Asia
- Red Lines (Bangkok), Thailand
- Dark Red Line (Bangkok)
- Light Red Line (Bangkok)
- Red Line, Chiang Mai light rail transit, Thailand
- Red Line (Doha Metro), Qatar
- Red Line (Dubai Metro), United Arab Emirates
- Line 5 (Chennai Metro), India
- Red Line (Delhi Metro), India
- Red Line (Hyderabad Metro), India
- Red Line (Mumbai Metro), India
- Red Line (Lucknow Metro), India
- Red Line (Namma Metro), Bengaluru, India
- Bogor Line of KA Commuter line Jakarta KotaâÂÂBogor, KRL Commuterline, Jakarta, Indonesia
- Red line (Kaohsiung MRT), Taiwan
- Line 1 (Beijing Subway), China
- Line 1 (Shanghai Metro), China
- Line 5 (Guangzhou Metro), China
- MidÃ
Âsuji Line, Osaka, Japan
- NorthâÂÂSouth Line (Singapore), Singapore
- TamsuiâÂÂXinyi line, Taipei, Taiwan
- Tokyo Metro Marunouchi Line, Tokyo, Japan
- Tsuen Wan line, Hong Kong
- Line 1 (Daegu Metro), South Korea
- Shinbundang Line, Seoul, South Korea
- Red Line (Jerusalem Light Rail), Jerusalem, Israel
- Red Line (Tel Aviv Light Rail), Tel Aviv, Israel
- Line 2 (Riyadh Metro), Riyadh, Saudi Arabia
Europe
- Red Line (Luas), Dublin, Ireland, a tram line
- Red Line (Stockholm Metro), Sweden
- Line 2 (Athens Metro), Greece
- AÃ
Âtazavodskaja line, Minsk, Belarus
- Barcelona Metro line 1, Spain
- Central line (London Underground), England
- Leninskaya Line, Novosibirsk, Russia
- Line 1 (Kharkiv Metro) aka KholodnohirskoâÂÂZavodska line, Ukraine
- Line 1 (Saint Petersburg Metro), Russia
- Line 2 (Madrid Metro), Spain
- Line C (Prague Metro), Czech Republic
- Lyon Metro Line A, Lyon, France
- Milan Metro Line 1, Italy
- RER A, Paris, France
- SviatoshynskoâÂÂBrovarska line, Kyiv, Ukraine
- Sokolnicheskaya line, Moscow, Russia
- Tyne and Wear Metro of Newcastle upon Tyne, UK (former line)
- Red Line (Lisbon Metro), Portugal
- U2 (Berlin U-Bahn), Germany
North America
Canada
Mexico
United States
- Red Line (Baltimore), Maryland Transit Administration, Maryland (Proposed)
- Red Line (CTA), Chicago, Illinois
- Red Line (DART), Texas
- Red Line (IndyGo), Indianapolis Public Transportation Corporation, Indianapolis, Indiana
- Red Line (MARTA) (formerly North-South Line), Atlanta, Georgia
- Red Line (MBTA), Boston, Massachusetts
- Red Line (Pittsburgh), Port Authority, Pennsylvania
- Red Line (RTA Rapid Transit), Greater Cleveland Regional Transit Authority, Ohio
- Red Line (Sound Transit), Seattle, Washington
- Red Line (St. Louis MetroLink), Bi-State Development Agency, Missouri
- Red Line (TRAX), Utah Transit Authority, Salt Lake City area
- Red Line (Washington Metro), WMATA, Washington, D.C.
- Red Line (The Vine), a bus rapid transit line in Vancouver, Washington
- Baltimore Light RailLink for Penn Station â Camden Yards Line aka Red Line, Maryland Transit Administration, Baltimore, Maryland
- B Line (Los Angeles Metro), California, until 2020 formerly named the "Red Line"
- Capital MetroRail, Austin, Texas
- F Line (RTD), aka Red Line, Regional Transportation District, Denver, Colorado
- IRT BroadwayâÂÂSeventh Avenue Line in New York City, colored red, serving the 1, 2, and 3 trains
- Lynx Red Line, North Carolina
- MAX Red Line, Tri-Met, Portland, Oregon
- Metro Red Line (Minnesota), METRO/Minnesota Valley Transit Authority, suburban Minneapolis, Minnesota area
- METRORail Red Line, Houston, Texas
- PATCO Speedline, Philadelphia, Pennsylvania
- Rapid Ride Route 766 Red Line, ABQ RIDE, Albuquerque, New Mexico
- Red Line (BART), Bay Area Rapid Transit, San Francisco Bay Area, California
- Special Event Line (San Diego Trolley), SDMTS, San Diego, California
- T Third Street, MUNI, San Francisco, California
- Valley Metro Rail, aka METRO Light Rail Red Line, Phoenix, Arizona
South America
Other uses
- Red line (phrase), a figurative phrase used in English and Hebrew meaning a limit past which something shouldn't cross safely
- Red lines in the Russo-Ukrainian War
- Red line (hockey), the center of the playing surface on an ice hockey rink
- Red Line (Namibia), a pest-exclusion fence separating Northern Namibia from the central and southern parts
- Red Line, the military line of defense in Operation Manta, along the 15th and later 16th parallel north, of the Chadian-Libyan Conflict
- All Red Line, a network of telegraph cables linking the British Empire
- Red Line Agreement, an agreement signed by partners in the Turkish Petroleum Company in 1928
- Red Line Synthetic Oil Corporation, an oil manufacturer for automotive and other performance applications
- Red Line, Iowa, an unincorporated community
- Operation Red Line, a planned Indian military operation