Shimosuwa-shuku (下諏訪宿 Shimosuwa-shuku?) was the twenty-ninth of the sixty-nine stations of the Nakasendō, as well as being the ending location of the Kōshū Kaidō. It is located in the present-day town of Shimosuwa, Suwa District, Nagano Prefecture, Japan.
First built around 1601, Shimosawa-shuku flourished as a post town because it was located between two difficult mountain passes, Wada Pass and Shiojiri Pass. The town's onsens made it a heavily used rest area. It also served as the entrance to the Suwa Taisha.
Records show that in 1843, Shimosuwa-juku had 1,345 residents and 315 buildings. Among the building, there was one honjin, one sub-honjin, and 40 hatago.
Coordinates: 36°04′34.9″N 138°05′25.7″E / 36.076361°N 138.090472°E