Daly Building, Historic department store site on Rideau Street, Ottawa, Canada

The Daly Building was a Chicago School department store and office block at the corner of Rideau Street and Sussex Drive in Ottawa, designed by Moses Chamberlain Edey and opened in 1905. It was Ottawa's only Chicago Style structure, expanded northward with two added storeys in 1913. It was demolished piecemeal between October 1991 and March 1992; an 11-storey apartment building opened on the site in 2004.

The building opened in 1905 as Ottawa's first department store and served multiple retailers. In 1921 the federal government purchased it for office use.

The name Daly comes from H.J. Daly, who bought the building in 1915; it had opened in 1905 as the T. Lindsay department store, Ottawa's first. After 1921 it housed government offices for decades. The building no longer stands: it was demolished in 1991–92, and an 11-storey apartment block opened on the site in 2004.

The Daly Building no longer stands: it was demolished between October 1991 and March 1992, and the corner of Rideau Street and Sussex Drive now holds an 11-storey apartment building opened in 2004. Visitors can only see that replacement block; there is nothing left of the original structure to enter.

The 1964 cornice removal followed a fatal accident: falling stone killed a pedestrian on the street below, not merely injuring one. The Daly Building was demolished in 1991–92, so nothing of it stands at the Rideau Street and Sussex Drive corner today.