Mount Bonju (梵珠山, Bonju-san) is a mountain located between Namioka, Aomori and Goshogawara, Japan near the southern end of the Tsugaru Mountains between the central part of Aomori and Goshogawara.

[1] Mount Bonju is entirely made up of Miocene basalts, dacite, rhyolite near its peak with marine mudstone from the same epoch near its base.

[4] Local lore claims that some of Shakyamuni Buddha's cremated remains are entombed in a burial mound on the mountain.

A pilgrimage is held on 9 July every year to see an onibi over the mound where the relic is claimed to be buried.

A visitor center with a parking lot lies at the base of the mountain on its southeastern flank.