Line 2 of the Tianjin Metro (Chinese: 天津地铁二号线; pinyin: Tiānjīn Dìtiě Èr Hào Xiàn) is a rapid transit line running from west to east Tianjin.

Opened on 1 July 2012,[1] the line is 27.157 km long and has 20 stations.

In May 2011, during construction, a section of tunnel west of Tianjin railway station was flooded with water from the Hai River and collapsed, trapping one of the TBMs.

This delayed the original opening date from late 2011 to 2012.

[2] After the line opened for trial operations on 1 July 2012, it operated in two separate sections until the affected section finished reconstruction and Jianguodao Station opened on 28 August 2013, finally reconnecting the two sections.