Ariake (有明町, Ariake-chō) was a town located in Kishima District, Saga Prefecture, Japan.

Ariake borders the Ariake Sea, and from the Edo period through the Shōwa period land was reclaimed from this sea.

In the west it borders Shiota at Kishima Mountain, and in the east it borders the Ariake Sea and is an area of lowland rice paddies.

To the north it becomes Shiroishi, and to the south it borders Kashima along the Shiota River.

The town proper is northeast of the train station, Hizen-Ryūō, and near Megurie River.