Line 14 may refer to:
Asia Line 14 (Beijing Subway), China Line 14 (Guangzhou Metro), China Line 14 (Mumbai Metro), India (planned) Line 14 (Shanghai Metro), China Line 14 (Shenzhen Metro), China Line 14 (Xi'an Metro), China Line 14 (Zhengzhou Metro), China
Europe Line 14 (Moscow Metro), or Moscow Central Circle, Russia Line 14, part of the Red Line (Stockholm Metro), in Sweden Paris Metro Line 14, France Paris Metro Line 14 (1937–1976), France S14 (ZVV), Zurich, Switzerland
North America Line 14 (BMT), now part of New York City Subway service J/Z Candiac line, also designated as line 14, a commuter rail service in Greater Montreal, Quebec
South America Line 14 (CPTM), São Paulo, Brazil
See also List of public transport routes numbered 14