Old Lehigh County Courthouse is a historic county courthouse located at Allentown, Lehigh County, Pennsylvania. The original section was built between 1814 and 1819, and was a 2 1/2-story, stone building with a hipped roof. It was remodeled and enlarged in 1864 in the Italianate style. An addition on the west was added in 1880-1881, and the addition to the north was built in 1914-1916, in the Beaux-Arts style.It was added to the National Register of Historic Places in 1981.
