Watervliet is a city in Berrien County in the U.S. state of Michigan.

Located in the northeastern part of the county, the population was 1,669 at the 2020 census.

The city is surrounded by Watervliet Charter Township but is administered autonomously.

In 1905, John Olsen and Maud Nelson moved here where they established a women's baseball team.

The "Cherokee Indian Baseball Team" set out in its Pullman car in the same year complete with an electric light facility, a grand stand and a 12 by 1200 foot fence.

She was billed by her husband, Olsen, as the undisputed women's champion pitcher of the world.

28.7% of all households were made up of individuals, and 13.5% had someone living alone who was 65 years of age or older.

28.5% of all households were made up of individuals, and 16.0% had someone living alone who was 65 years of age or older.