The Dayton Street Historic District is located in the Old West End neighborhood of Cincinnati, Ohio, United States.

As the city grew, wealthy residents built country houses within the district's boundaries, beginning c. 1840 and continuing until the Civil War era.

Typical buildings erected during this time are multi-story Italianate residences constructed of brick or stone, similar to townhouses but detached.

At the neighborhood's height, the residents were wealthy businessmen, most of whom were active in the city's meatpacking and brewing industries, and many of these men were careful to beautify their homes with elements such as stone retaining walls and fences of cast iron; while much of the stonework and ironwork has been lost, large amounts of both remain.

[3] The entire historic district embraces approximately four hundred contributing properties, almost all single-family houses, although there are occasional exceptions; the former Police Station No.