Harrison County Historical Museum is a historical museum in Marshall, Texas, dedicated to the history of Harrison County, Texas. The museum houses twenty-two rooms of exhibits ranging in topic from the Native American Caddo culture to the history of the HBCU Wiley College.
The museum has historically been located in the Old Courthouse on Whetstone Square, but has been temporarily located in the Ginocchio since 2001 awaiting the completion of a restoration project of the Old Courthouse.
The museum house thousands of artifacts and also has an extensive photographic and text archive partially maintained by a genealogical society. Notable pieces housed in the museum include; an Inaugural ball gown worn by Lady Bird Johnson and an accompanying suit worn by Lyndon Johnson, the Emmy Bill Moyers won for his documentary Marshall, Texas: Marshall, Texas, and George Foreman's world championship belt.