The Shōnai River (庄内川) is a Class 1 river flowing through Gifu and Aichi prefectures in Japan. In Gifu Prefecture, it is also referred to as the Toki River (土岐川 Toki-gawa); around the city of Kasugai in Aichi Prefecture, it is referred to as the Tamano River (玉野川 Tamano-gawa). Fujimae-higata (designated sites as List of Ramsar wetlands of international importance) exists in the River mouth.

Geography

The river originates at Mount Yūdachi in Ena, Gifu Prefecture. After flowing through the Tamano Valley in Aichi Prefecture, it enters the Nōbi Plain, before emptying into Ise Bay through Nagoya's Minato-ku.

River communities

The river passes through or forms the boundary of the communities listed below.