The Kichuy (Russian: Кичуй), (Tatar: Кичү) is a river in Tatarstan, Russian Federation, a right-bank tributary of the Sheshma. It is 114 kilometres (71 mi) long, and its drainage basin covers 1,330 square kilometres (510 sq mi).

Major tributaries are the Butinka, Batraska, Chupayka, Yamashka, and Tetvelka. The maximal mineralization 400–71000 mg/L. The average sediment deposition at the river mouth per year is 127 millimetres (5.0 in). Drainage is regulated.