Lake County Courthouse may refer to:
Old Lake County Courthouse (California), Lakeport, California Old Lake County Courthouse (Florida), Tavares, Florida Lake County Courthouse (Indiana), Crown Point, Indiana Lake County Courthouse and Sheriff's Residence, Two Harbors, Minnesota Lake County Courthouse (Ohio), Painesville, Ohio Painesville City Hall, also known as the Old Lake County Courthouse, Ohio Lake County Courthouse (South Dakota), Madison, South Dakota