Line 19 may refer to:
China Line 19 (Beijing Subway) Line 19 (Chengdu Metro) (planned) Line 19 (Hangzhou Metro) Line 19 (Shanghai Metro) (planned) Line 19 (Wuhan Metro) Other countries Paris Metro Line 19, a planned line in France Line 19 (São Paulo Metro), a planned line in Brazil Line 19, part of the Green Line (Stockholm Metro), in Sweden
See also List of public transport routes numbered 19