Dowagiac ( /dəwɑːdʒæk/ də-wah-jak) is a city in Cass County in the U.S. state of Michigan. The population was 6,147 at the 2000 census. It is part of the South Bend–Mishawaka, IN-MI, Metropolitan Statistical Area.
Dowagiac is situated at the corner of four townships: Wayne Township to the northeast, LaGrange Township to the southeast, Pokagon Township to the southwest, and Silver Creek Township to the northwest.
The city name comes from the Potawatomi word meaning "fishing water".