The Wichita-Sedgwick County Historical Museum is a non-profit 501(c)(3) organization dedicated to preserving and presenting the local history of Wichita and Sedgwick County, Kansas, United States.

It is located at 204 South Main (southeast of the corner of Main and William streets), and east of the former Wichita Public Library.

Today the museum resides in the original City Hall building designed by William T. Proudfoot and George W. Bird in 1890.

Exhibits are housed on four floors and are open to the public six days a week for a nominal admission fee.

It has been listed on the National Register of Historic Places since 1971.