Mineoka Mountain District (嶺岡山地, Mineoka-sanchi) is an area in the Bōsō Hill Range in the southern part of Chiba Prefecture.

[1] The Mineoka Mountain District is composed of igneous rocks such as serpentinite, basalt, and granite; mudstone is also found in great quantity.

Minamoto no Yoshitsune's gunki monogatari war tale, the Gikeiki mentions the landing of a boat party on Cape Sunosaki at the southern end of the Mineoka Mountain District.

As a result of the Edicts on Compassion for Living Things (生類憐みの令, Shōruiawareminorei) promulgated by Tokugawa Tsunayoshi's (1646 – 1709), the use of horses throughout Japan was deemphasized.

The relative inaccessibility of the district, as well as its proximity to the capitol in Tokyo, led to the construction of military facilities at Mount Atago during World War II.