Auchi is the second-largest city in Edo State, Nigeria, after Benin City, the capital.
Auchi, which is part of Etsako West Local Government Area of Edo State, serves as the Local Government headquarters. Other towns in Etsako West local government area includes; Uzairue, South Ibie, Agbede and The Anwain Clan. During the British colonial rule, it was the headquarters of the Kukuruku Division, the administrative headquarters of five districts. Auchi is also the root of one of the Momoh family. It is the home of Auchi Polytechnic.
UFC Welterweight Champion, Kamaru Usman was born in Auchi.