The Limmattal tramway (German: Limmattal-Strassenbahn, LSB) was a metre gauge electric tramway that operated in the Limmat Valley, situated in the Swiss canton of Zürich to the west of the city of Zürich.

In its early life the line was beset by problems with its level crossings over the Swiss Northeastern Railway at Farbhof and Schlieren, which the trams were only permitted to cross empty, leaving their passengers to walk.

[1][2][3] By the late 1920s the track was in poor condition, although by then the level crossings had been replaced by bridges.

It sees occasional operation and is painted in the line's yellow livery.

[2][4] The Limmattal light rail line was opened in December 2022, linking Zürich Altstetten railway station to Killwangen and using a roughly similar alignment to the Limmattal tramway's former route between Farbhof and Dietikon.