Mount Senjō (船上山, Senjō-san), is a mountain in the town of Kotoura, Tottori Prefecture, Japan.

The shugo of Hōki, Nawa Nagatoshi offered Emperor Go-Daigo sanctuary and the use of his fortified residence at Mount Senjō.

According to the medieval chronicle Taiheiki, this enabled Emperor Go-Daigo conclusively defeat the Sasaki clan and to capture all of Hōki Province.

The Kamakura shogunate dispatched two armies to subdue the rebellion; however the force led by Hōjō Takaie along the San'yōdō highway was defeated by the Akamatsu clan and the force led by Ashikaga Takauji switched sides and destroyed the shogunate's stronghold of Rokuhara Tandai in Kyoto.

[1] As one of the important sites of the Genkō War, the location of the battle was commemorated by the post-Meiji restoration Japanese government.

Senjō is about 15 minutes by car from Akasaki Station on the JR West San'in Main Line.