The Old Downtown Harrisburg Commercial Historic District is a national historic district that is located in Harrisburg, Dauphin County, Pennsylvania.

It was added to the National Register of Historic Places in 1983, with a boundary increase made in 1984.

[1] This district includes fifty contributing buildings that are located in the old central business district of Harrisburg.

[2] The Telegraph Building was delisted after having been demolished.

It was added to the National Register of Historic Places in 1983, with a boundary increase in 1984.