Ōita Prefectural Museum of History, Historical museum in Usa City, Japan.

The Ōita Prefectural Museum of History stands within the Usa Fudoki-no-Oka in Usa, Ōita Prefecture, on the site of the Kawabe-Takamori burial mounds. Its galleries present the history and culture of Toyo no kuni, Usa Hachiman-gū and the Rokugōsan temples of the Kunisaki peninsula, with full-scale replicas of the Fuki-ji main hall and the Kumano Magaibutsu Dainichi Buddha.

The museum opened in 1998, replacing the Usa Fudoki-no-Oka historical and folk materials museum founded in 1981 on the same site within the Usa Fudoki-no-Oka park. In October 1998 its permanent exhibition rooms were enlarged and the displays renewed. It stands inside the Kawabe-Takamori kofun group, one of Kyushu's largest clusters of burial mounds.

The permanent galleries centre on the Hachiman and Buddhist culture of Usa Hachiman-gū and the Rokugōsan temples of the Kunisaki peninsula, with a section on life and ancient Buddhism in Toyo no kuni. Full-scale replicas of the Fuki-ji main hall, the Usuki magaibutsu and the Kumano magaibutsu let visitors read carvings that remain on cliff faces outdoors.

The museum stands inside the Usa Fudoki-no-Oka archaeological park in Usa, Ōita Prefecture, within the Kawabe-Takamori kofun group. The official website linked from the museum's page lists opening hours, closed days, admission and access details.

The museum stands inside the Kawabe-Takamori Kofun Cluster, one of Kyushu's largest groups of burial mounds, so the outdoor setting is itself part of the archaeological record. Among the nationally designated Important Cultural Properties held here are grave goods from the Men'ga-daira Kofun in Usa: two mirror discs, 47 iron objects, 19 stone objects and 14 glass beads from the stone chamber.