Suhara-juku (須原宿, Suhara-juku) was the thirty-ninth of the sixty-nine stations of the Nakasendō, as well as the seventh of eleven stations on the Kisoji.
It is located in the present-day village of Ōkuwa, in the Kiso District of Nagano Prefecture, Japan.
Of all of the post towns along the Kisoji, Suhara was the first one to be established,[1] though originally at a different location.
After the town was washed away by a major flood in 1717, it was moved to its present location.