{{Line TOC}} '''3 Line''' or '''Line 3''' may refer to: {{toc right}} {{tocright}} ==Public transport== ===Asia=== *Line 3 (Chennai Metro), or Purple Line, under construction in India *Line 3 (Mumbai Metro), under construction in India *Line 3 (Pune Metro), under construction in India *Purple Line (Kolkata Metro), India *Ampang Line or Line 3, in Klang Valley, Malaysia *MRT Line 3 (Metro Manila), Philippines *Busan Metro Line 3, in South Korea *Daegu Metro Line 3, in South Korea *Seoul Subway Line 3, in South Korea *Taipei Metro Line 3 or Songshan–Xindian or Green line, in Taiwan *Line 3 (Hanoi Metro) or Văn Miếu Line, under construction in Vietnam
====China==== *Line 3 (Beijing Subway), a subway line in Beijing *Line 3 (Changchun Rail Transit), a light rail line in Changchun, Jilin *Line 3 (Changsha Metro), a metro line in Changsha, Hunan *Line 3 (Chengdu Metro), a metro line in Chengdu, Sichuan *Line 3 (Chongqing Rail Transit), a monorail line in Chongqing *Line 3 (Dalian Metro), a metro line in Dalian, Liaoning *Line 3 (Dongguan Rail Transit), a planned metro line in Dongguan, Guangdong *Line 3 (Foshan Metro), a metro line in Foshan, Guangdong *Line 3 (Guangzhou Metro), a metro line in Guangzhou, Guangdong *Line 3 (Hangzhou Metro), a metro line in Hangzhou, Zhejiang *Line 3 (Harbin Metro), a metro line in Harbin, Heilongjiang *Line 3 (Hefei Metro), a metro line in Hefei, Anhui *Line 3 (Jinan Metro), a metro line in Jinan, Shandong *Line 3 (Kunming Metro), a metro line in Kunming, Yunnan *Line 3 (Nanchang Metro), a metro line in Nanchang, Jiangxi *Line 3 (Nanjing Metro), a metro line in Nanjing, Jiangsu *Line 3 (Nanning Metro), a metro line in Nanning, Guangxi *Line 3 (Ningbo Rail Transit), a metro line in Ningbo, Zhejiang *Line 3 (Qingdao Metro), a metro line in Qingdao, Shandong *Line 3 (Shanghai Metro), a metro line in Shanghai *Line 3 (Shenzhen Metro), a metro line in Shenzhen, Guangdong *Line 3 (Shijiazhuang Metro), a metro line in Shijiazhuang, Hebei *Line 3 (Suzhou Metro), a metro line in Suzhou, Jiangsu *Line 3 (Tianjin Metro), a metro line in Tianjin *Line 3 (Wuhan Metro), a metro line in Wuhan, Hubei *Line 3 (Wuxi Metro), a metro line in Wuxi, Jiangsu *Line 3 (Xiamen Metro), a metro line in Xiamen, Fujian *Line 3 (Xi'an Metro), a metro line in Xi'an, Shaanxi *Line 3 (Xuzhou Metro), a metro line in Xuzhou, Jiangsu *Line 3 (Zhengzhou Metro), a metro line in Zhengzhou, Henan
===Europe=== *Line 3 (Athens Metro), a metro line of the Athens Metro, Athens, Greece *Line 3 (Budapest Metro), a subway line of the Budapest Metro, Budapest, Hungary *Line 3 (Madrid Metro), a metro line of the Madrid Metro, Madrid, Spain *Line 3 (Metrovalencia), in Valencia, Spain *Line 3 (Moscow Metro), the Arbatsko-Pokrovskaya line in Moscow, Russia *Line 3 (Saint Petersburg Metro) *Île-de-France tramway Line 3, a modern tramway in Paris *Paris Metro Line 3, a line of the Paris Metro rapid transit system in France *U3 (Vienna U-Bahn), a subway line of Vienna U-Bahn, Vienna, Austria
===North America===
====Canada==== *Line 3 Scarborough, a former intermediate capacity rapid transit line in Toronto *Line 3 Red (Montreal Metro), proposed but not built *Line 3 Ontario, an under construction subway line in Toronto
====Mexico==== *Mexico City Metro Line 3, a rapid transit line in Mexico City *Mexico City Metrobús Line 3, a bus rapid transit line in Mexico City *Line 3 of the Guadalajara urban rail system, Mexico
====United States==== *Route 3 (MTA Maryland), a bus route *3 (New York City Subway service), a rapid transit service *3 (Los Angeles Railway), former streetcar service *3 Line (Sound Transit), a future light rail line in Seattle, Washington
===South America=== *Line 3 (Metrovía), a bus route in Guayaquil, Ecuador *Line 3 (Rio de Janeiro), a proposed metro line in Rio de Janeiro, Brazil *Line 3 (São Paulo Metro), Brazil *Santiago Metro Line 3, in Chile
===Oceania=== ====Australia==== *L3 Kingsford Line, light rail line in Sydney, New South Wales *T3 Liverpool & Inner West Line, Sydney Trains service, New South Wales
== See also == *Enbridge Line 3, a proposed tar sands oil pipeline * 3 Train (disambiguation) *3-line, a name for the Russian Mosin–Nagant rifle *Three-line whip, an instruction from a whip to vote in the UK parliament
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