Matsuo (松尾町, Matsuo-machi) was a town located in Sanbu District, Chiba Prefecture, Japan.

Matsuo Village was formed on April 1, 1889 within Musha District.

It expanded through the annexation of the neighboring villages of Ohira and Toyooka on February 1, 1955.

On March 27, 2006, Matsuo, along with the towns of Narutō and Sanbu, and the village of Hasunuma (all from Sanbu District), was merged to create the city of Sanmu,[1] and thus no longer exists as an independent municipality.

This Chiba Prefecture location article is a stub.