Ōta-juku
was the fifty-first of the sixty-nine stations of the Nakasendō during the Edo period. It is located in Minokamo, Gifu Prefecture, Japan. It was located on one of the more difficult parts of the Nakasendō, but relics from its days as a post town still remain today. There are tours and programs available to introduce this old post town to visitors, including the Ōta-juku Nakasendō Museum.

Post stations with the same name
Ōta-juku is also the name of the seventh post station on the Nikkō Reiheishi Kaidō.

Neighboring post towns
Nakasendō
Fushimi-juku - Ōta-juku - Unuma-juku