Oku-san (おくさん, "Wife") is a Japanese manga series written and illustrated by Masakazu Ooi [ja].

It has been serialized in Shōnen Gahōsha's seinen manga magazine Monthly Young King (later Young King OURs GH [ja]) from December 2008 to September 2024, with its chapters collected in 22 tankōbon volumes.

Written and illustrated by Masakazu Ooi [ja], Oku-san started in Shōnen Gahōsha's seinen manga magazine Monthly Young King on December 19, 2008.

[2] The magazine was rebranded as Young King OURs GH [ja] starting on August 16, 2013.

[4][5] Shōnen Gahōsha collected its chapters in 22 individual tankōbon volumes, released from September 18, 2009, to December 16, 2024.