Line 6

Line 6 may refer to:

Metro lines

Line 6 (Beijing Subway), a subway line in Beijing
Line 6 (Changsha Metro), a metro line in Changsha, Hunan
Line 6 (Chengdu Metro), from Pidu District to Tianfu New Area, Chengdu, Sichuan
Line 6 (Chongqing Rail Transit), a metro line in Chongqing
Line 6 (Fuzhou Metro), from Cangshan District to Changle District, Fuzhou, Fujian
Line 6 (Guangzhou Metro), a metro line in Guangzhou, Guangdong
Line 6 (Hangzhou Metro), a metro line in Hangzhou, Zhejiang
Line 6 (Kunming Metro), a metro line in Kunming, Yunnan
Line 6 (Shanghai Metro), a metro line in Shanghai
Line 6 (Shenzhen Metro), a metro line in Shenzhen, Guangdong
Line 6 (Tianjin Metro), a metro line in Tianjin
Line 6 (Wuhan Metro), a metro line in Wuhan, Hubei
Line 6 (Xi'an Metro), a metro line in Xi'an, Shaanxi
Line 6 (Zhengzhou Metro), a metro line in Zhengzhou, Henan

Line 6 (Mumbai Metro), also called the Lokhandwala-Jogeshwari-Vikhroli-Kanjurmarg corridor, Mumbai, India
Line 6 (Osaka), an underground rapid transit line in Osaka, Japan
Seoul Subway Line 6, a line of the Seoul Subway, Korea
Line 6 (Taipei Metro), a line of the Taipei Metro, Taiwan
KLIA Ekspres, called Line 6 at route map
Manila Light Rail Transit System Line 6, Metro Manila, Philippines
MRT Line 6 (Dhaka Metro), Metro Rail Line 6 in Dhaka, Bangladesh

Line 6 (Moscow Metro), a metro line of the Moscow Metro, Moscow, Russia. Also known as "Kaluzhsko–Rizhskaya line".
Line 6 (Saint Petersburg Metro), a metro line of the Saint Petersburg Metro, Moscow, Russia. Also known as "Krasnoselsko–Kalininskaya line".
Line 6 (Naples Metro), a light metro line that forms part of the Naples Metro

Line 6 (Montreal Metro), a proposed surface-running line of the Montreal Metro, Quebec, Canada
Line 6 Finch West, future light rail line in Toronto

6 (New York City Subway service), the 6 Lexington Avenue Local and 6 Pelham Bay Park Express, New York
6 (BMT rapid transit service), the designation for trains that used the BMT Fifth Avenue Line, New York City, New York
No. 6 Line (Baltimore streetcar), a bus route operated by the Maryland Transit Administration, Baltimore, Maryland
6 (Los Angeles Railway), former streetcar service

Line 6 (São Paulo Metro), a planned extension of the São Paulo Metro, Brazil
Santiago Metro Line 6, connecting the communes of Cerrillos and Providencia in Santiago, Chile

Line 6 (company), a manufacturer of digital modeling guitars, amplifiers and related electronic equipment