The Sennichimae Line (千日前線, Sennichimae-sen) is an underground rapid transit line in Osaka, Japan. It is one of the lines of the Osaka Municipal Subway system operated by the Osaka Municipal Transportation Bureau. It links the northwestern district of Fukushima-ku and the southeastern district of Ikuno-ku with the central commercial and entertainment district of Namba. Its official name is Rapid Electric Tramway Line No.