Oshu or Ōshū may refer to:
*Another name for
Mutsu Province
was an old province of Japan in the area of Fukushima, Miyagi, Iwate and Aomori Prefectures and the municipalities of Kazuno and Kosaka in Akita Prefecture.
Mutsu Province is also known as or . The term is often used to refer to the comb ...
, a former Japanese province
*
Ōshū, Iwate, Japan, a city
*
Northern Fujiwara
The Northern Fujiwara (奥州藤原氏 ''Ōshū Fujiwara-shi'') were a Japanese noble family that ruled the Tōhoku region (the northeast of Honshū) of Japan during the 12th century as their own realm. (''Ōshū Fujiwara-shi''), a Japanese noble family
*
Ōshū Corporation
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