"Train-Train" (トレイン・トレイン, Torein Torein) was the fifth professional single by the Japanese band The Blue Hearts.

The single was released at the same time as the album Train-Train.

The B-side song to "Train-Train" was "Mugon Denwa no Blues" (無言電話のブルース Silent Telephone Blues).

Both of the songs were written by Masatoshi Mashima, the band's guitarist.

1 of the anime adaptation of O Maidens in Your Savage Season.