The Rossmore Apartment House is a demolished historic building in Downtown Louisville, Kentucky, United States.

The simplicity of line and detail, the hard-edged arches of radiating bricks, and the row of oriels on the south wall are all typical of the Chicago style.

[2] The building was completed in 1894 when the block of Fourth Street it is located on was still residential, but the business district was spreading south towards Broadway.

Recognizing a trend, Alonzo J. Ross, a local grocer and entrepreneur, purchased the lot in 1893 and commissioned the building.

[2] It was deemed historically significant in 1978 as an example of the Chicago school of architecture, as well as being one of the oldest buildings at the time in the Fourth Street commercial district.