Robert Doull (1828 – December 9, 1906) was a Scottish-born Canadian merchant and political figure.

He represented Pictou in the House of Commons of Canada from 1872 to 1874 and from 1878 to 1882 as a Liberal-Conservative member.

[1] He was born in Wick, Caithness-shire, Scotland,[1] the son of John Doull and Jane Craig,[2] and came to Nova Scotia with his parents while still an infant.

He served as treasurer for the county for 15 years and was a director of the Pictou Bank.

[3] Doull was defeated in 1874 but then ran successfully for a federal seat in 1878.