Warsaw High School, or WHS, is a public four-year high school located in Warsaw, Illinois, a small city in Hancock County in the Midwestern United States.

WHS serves the communities of Warsaw, Basco, Colusa, Nauvoo, Niota, Sutter and Tioga.

[2][3] The campus is located 35 miles (56 km) north of Quincy, 40 miles (64 km) west of Macomb and serves a mostly rural residential community.

[4] Surrounding communities may have also possessed high schools at some time which were consolidated into the current WHS.

Due to its small enrollment, WHS co-operates with nearby Hamilton High School for most athletics under the mascot of the Titans and the colors of red, white and black.