Iwamurada-shuku (岩村田宿 Iwamurada-shuku?) was the twenty-second of the sixty-nine stations of the Nakasendō. It is located in the present-day city of Saku, in Nagano Prefecture, Japan.
Originally, Iwamurada-shuku was a castle town for the Iwamurada Han and, as a post town, it never developed a proper honjin, though it did have some smaller inns.
Coordinates: 36°16′21″N 138°28′42″E / 36.2726°N 138.4783°E