Marion County Courthouse or Old Marion County Courthouse may refer to:
Marion County Courthouse (Arkansas), Yellville, Arkansas Marion County Courthouse (Georgia), Buena Vista, Georgia Old Marion County Courthouse (Georgia), Tazewell, Georgia Marion County Courthouse (Illinois), Salem, Illinois Marion County Courthouse (Iowa), Knoxville, Iowa Marion County Courthouse (Indiana), Marion County, Indiana, the tallest building in Indianapolis until 1962 Marion County Courthouse (Kansas), Marion, Kansas Marion County Courthouse, located in the Lebanon Historic Commercial District, Lebanon, Kentucky Marion County Courthouse and Jail, Columbia, Mississippi, listed on the National Register of Historic Places Marion County Courthouse (Missouri), Hannibal, Missouri Marion County Courthouse (Ohio), Marion, Ohio Marion County Courthouse (Oregon), Salem, Oregon Marion County Courthouse (Texas), Jefferson, Texas, a Recorded Texas Historic Landmark Marion County Courthouse (West Virginia), Fairmount, West Virginia