Oostburg High School is a public high school located in Oostburg, Wisconsin, United States.

Part of the Oostburg School District, the school serves students in grades 9 through 12.

Oostburg High School has an enrollment of 310.

As of the start of the 2015-16 academic year, Oostburg High School's athletic teams participate in The Big East Conference, which is a part of the Wisconsin Interscholastic Athletic Association (WIAA).

Its teams are known as the Dutchmen and Lady Dutch.