Teal Line may refer to:
China Daxing line, a rapid transit line in Beijing Line 4 (Beijing Subway), a rapid transit line Line 18 (Chengdu Metro), a rapid transit line Line 8 (Guangzhou Metro), a rapid transit line Airport Express (MTR), a rapid transit line in Hong Kong Line 6 (Kunming Metro), a rapid transit line Shanghai maglev train, a magnetic levitation rail line Line 6 (Shenyang Metro), a rapid transit line
Elsewhere Mexico City Metro Line 4, a rapid transit line in Mexico Jurong Region MRT Line, a rapid transit line in Singapore W Line (RTD), a light rail line in the United States