The Sanbashi Line (桟橋線, Sanbashi-sen, lit.

Pier line) is a tram line serving the city of Kōchi, Kōchi Prefecture, on the island of Shikoku, Japan.

The tram line is part of the Tosaden Kōtsū network.

From its establishment up until September 30, 2014, it was operated by Tosa Electric Railway (土佐電気鉄道, Tosa Denki Tetsudō), but from October 1, 2014, the newly formed Tosaden Kōtsū company took over operation.

This article about a Japanese railway line–related topic is a stub.