Ōshū is located in the south-central portion of Iwate Prefecture, bordered by the Akita Prefecture to the west. At 993.35 square kilometers, Ōshū is the second largest municipality in 詳細

The area of present-day Ōshū was part of ancient Mutsu Province, and has been settled since at least the Japanese Paleolithic period. Isawa is especially rich in Kofun Period remains … 詳細

Ōshū has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 28 members. Ōshū, together with the city of Kanegasaki contributes … 詳細

• Graduate University for Advanced Studies – Iwate campus
• Iwate University – Ōshū campus 詳細

• - Reutte, Tirol, Austria since June 2011
• - Breitenwang, Tirol, Austria since June 2011
• - Greater Shepparton, Victoria, Australia since March 1979 詳細

• The sound of the Nambu Furin (wind chimes) at Mizusawa Station in Ōshū is designated as one of the 100 Soundscapes of Japan by the Ministry of the Environment
• Tsunozuka Kofun, the northernmost keyhole-shaped kofun in Japan, a National … 詳細

• Gotō Shinpei, politician
• Saito Makoto, IJN admiral, politician and prime minister of Japan 詳細