3 Line or Line 3 may refer to:

Public transport

Asia

Line 3 (Chennai Metro) The Purple Line or Line 3 is one of the three lines of Chennai Metro, Phase 2 Project. The under construction line stretches from to . The line will consist of 47 stations, out of which 28 are underground and 19 are elevated. Phase II ...

, or Purple Line, under construction in India *

Line 3 (Kolkata Metro) Kolkata Metro Line 3 or the Purple Line is a line of the Kolkata Metro. The stretch from Joka to Taratala of the line was inaugurated on 30 December 2022. The route spans from Joka in the south, to Esplanade in the north with an extensio ...

, under construction in Kolkata, India. *

Line 3 (Mumbai Metro) The Aqua Line 3 of the Mumbai Metro, also known as Colaba-Bandra-Seepz Line, is currently under construction in Mumbai, India. When completed, the 33.5-km long line will be the first underground metro line in Mumbai, with 27 underground statio ...

, under construction in India *

Line 3 (Pune Metro) Line 3 of the Pune Metro is the third line of the city's under-construction mass transit network. It will run from Civil Court, Pune to Megapolis Pune in Hinjawadi. The 23.3-km line will be completely elevated and will have 23 stations and wil ...

, under construction in India *

Ampang Line The LRT Ampang Line and the LRT Sri Petaling Line are medium-capacity rail system, medium-capacity light rapid transit (LRT) lines in the Klang Valley, Malaysia. The combined network comprises 45.1 kilometres of tracks (28.0 miles) with 36 ...

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 Taipei (), officially Taipei City, is the capital and a special municipality of the Republic of China (Taiwan). Located in Northern Taiwan, Taipei City is an enclave of the municipality of New Taipei City that sits about southwest of the no ...

or Songshan–Xindian or Green line, in Taiwan *

Line 3 (Hanoi Metro) Line 3, Hanoi Metro (Nhon - Hanoi Station section), also known as Văn Miếu Line (''Temple of Literature Line''), is one of the under-construction mass transit railway line in the Hanoi Metro network, will be the second line to be used in the m ...

or Văn Miếu Line, under construction in Vietnam

China

* Line 3 (Beijing Subway), a subway line under construction in Beijing *

Line 3 (Changchun Subway) Line 3 of the Changchun Rail Transit () is a light rail line running from northwest to southeast Changchun. It was opened on 30 October 2002. Line 3 was later extended on 26 December 2006 and 31 December 2021. This line is currently long with 34 ...

, metro line in Changchun, Jilin *

Line 3 (Chengdu Metro) Line 3 of the Chengdu Metro () runs in a northeast-southwest direction from Chengdu Medical College to Shuangliu West Station. The total length is . Line 3's color is magenta. Phase 1 of this line began construction on 28 April 2012, and opened o ...

, 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 Line 3 of the Hangzhou Metro () is a metro line in Hangzhou. The line is long. It will run in a southwest-northeast direction between Wushanqiancun station in Yuhang District and Xingqiao station in Linping District Linping is a district o ...

, under construction *

Line 3 (Kunming Metro) Line 3 is a rapid transit line on the Kunming Metro, serving the city of Kunming, China. It links Line 2 at Dongfeng Square, and links Line 6 at East Coach Station. It is an east-west line of the system. Phase I has a total length of and 17 s ...

, metro line in Kunming, Yunnan * Line 3 (Nanjing Metro), metro line in Nanjing, Jiangsu * Line 3 (Ningbo Rail Transit) * 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), metro line in Suzhou, Jiangsu * 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) Line 3 of Zhengzhou Metro () is a rapid transit line in Zhengzhou Zhengzhou (; ), also spelt Zheng Zhou and alternatively romanized as Chengchow, is the capital and largest city of Henan Province in the central part of the People's Republic ...

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) Line 3 is a line of Metrovalencia, the railway service in Valencia, Spain. It opened in 1995, and connects Rafelbunyol and the airport An airport is an aerodrome with extended facilities, mostly for commercial air transport. Airports ...

, 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 , timezone1 = CET , utc_offset1 = +01:00 , timezone1_DST = CEST , utc_offset1_DST = +02:00 , blank_name_sec1 = Gross regional product , blank_info_sec1 = Ranked 1st , bla ...

, 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) The 3 Seventh Avenue Express is a rapid transit service in the A Division of the New York City Subway. Its route emblem, or "bullet", is colored since it uses the IRT Broadway–Seventh Avenue Line through most of Manhattan. The 3 operates a ...

, a rapid transit service * 3 (Los Angeles Railway), former streetcar service

South America

Line 3 (Metrovía) Line 3 of Metrovia was inaugurated on May 4 of 2008. It connects the populous Neighborhood of Bastion Popular at the North of Guayaquil with downtown. Stations {, class = "toc" cellpadding = 0 cellspacing = 2 width = 90% style="margin:1em auto; ...

, a bus route in Guayaquil, Ecuador * Line 3 (São Paulo Metro), Brazil *

Santiago Metro Line 3 Line 3 is a rapid transit line of the Santiago Metro. Traveling from La Reina in the east towards the center, and Quilicura in the North, Line 3 was originally intended to open in the late 1980s, but the 1985 Algarrobo Earthquake hampered its c ...

, in Chile