Boisseau Province was a province of the Harchong Empire.
Located in the southwestern corner of North Harchong, the province was bordered to the north by Cheshire Province, to the east by Tiegelkamp Province, to the south by the Sea of Harchong, and to the west by the Wind Gulf Sea.
Following the fragmentation of the Empire in the early 890s YOG, the province, along with the province of Cheshire, was incorporated into the Imperial successor state of the United Provinces of Boisseau and Cheshire. (TFT)