Line 3

3 Line or Line 3 may refer to:

Public transport

Asia

• Line 3 (Kolkata Metro), under construction in Kolkata, India.
• Line 3 (Mumbai Metro), under construction in India
• Line 3 (Pune Metro), under construction in India
• Ampang Line or Line 3, in Klang Valley, Malaysia
• MRT Line 3 (Metro Manila), Philippines
• Busan 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 under construction in Beijing
• Line 3 (Changchun Subway), metro line in Changchun, Jilin
• Line 3 (Chengdu Metro), metro line in Chengdu, Sichuan
• Line 3 (Chongqing Rail Transit), a monorail line in Chongqing
• Line 3 (Dalian Metro), metro line in Dalian, Liaoning
• Line 3 (Dongguan Rail Transit), planned metro line in Dongguan, Guangdong
• Line 3 (Foshan Metro), metro line in Foshan, Guangdong
• Line 3 (Guangzhou Metro), metro line in Guangzhou, Guangdong
• Line 3 (Harbin Metro), metro line in Harbin, Heilongjiang
• Line 3, Hangzhou Metro, under construction
• Line 3 (Kunming Metro), metro line in Kunming, Yunnan
• Line 3 (Nanjing Metro), metro line in Nanjing, Jiangsu
• Line 3, Ningbo Rail Transit, under construction
• Line 3 (Qingdao Metro), metro line in Qingdao, Shandong
• Line 3 (Shanghai Metro), metro line in Shanghai
• Line 3 (Shenzhen Metro), metro line in Shenzhen, Guangdong
• Line 3 (Shijiazhuang Metro), metro line in Shijiazhuang, Hebei
• Line 3, Suzhou Rail Transit, a planned east–west line
• Line 3 (Tianjin Metro), metro line in Tianjin
• Line 3 (Wuhan Metro), metro line in Wuhan, Hubei
• Line 3 (Xi'an Metro), metro line in Xi'an, Shaanxi
• Line 3, Zhengzhou Metro, under construction

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 (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 Métro Line 3, a line of the Paris Métro rapid transit system in France
• U3 (Vienna U-Bahn), a subway line of Vienna U-Bahn, Vienna, Austria

North America

Canada

• Line 3 Scarborough in Toronto
• Line 3 Red (Montreal Metro), proposed but not built

Mexico

• Mexico City Metro Line 3, a rapid transit line in Mexico City

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

South America

• Santiago Metro Line 3, in Chile

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