Ralph Benjamin Pratt (9 August 1872 – 14 March 1950) was a Canadian architect known for his work as a staff architect for the Canadian Pacific Railway and the Canadian Northern Railway, and for his work as a member of the firm Pratt and Ross with partner architect Donald Aynsley Ross.

[1][2] Pratt worked at the Canadian Pacific Railway at Winnipeg as an architectural and engineering draftsman from 1895 to 1901, during which he created a standard plan for a station which was used at Virden, Manitoba, and other locations.

[3] Although Pratt left the Canadian Pacific in 1901, and the Canadian Northern in 1906, he continued to receive commissions from the railroads for other work, and both railroads continued to use the standard plans he had created, so the design of later stations is often attributed to him.

[1][2][4] Pratt married Euphemia Maude Monnington (1874–1977) on 23 October 1900, at Winnipeg, and they had three children.

[citation needed] He died at Saint Boniface, Winnipeg, on 14 March 1950, and was buried in the St. John's Cemetery.