St Stephen's Green is a stop on the Green Line of the Luas (tram) system in Dublin, Ireland. Originally opened in 2004, it was further developed as part of the Luas Cross City project between 2013 and 2017.

The Green Line is one of the two lines of Dublin's Luas light rail system. The Green Line was formerly entirely in the south side of Dublin city. It mostly follows the route of the old Harcourt Street railway line, which was reserved for possible re-use when it closed in 1958. The Green Line allows for passengers to transfer at O’ Connell GPO and Marlborough to Luas Red Line services and also allows commuters to use Broombridge as an interchange station to reach outer suburbs such as Castleknock and Ongar as well as Iarnrod Éireann services.