Sir John McDougall (3 March 1844 – 8 May 1917) was an English businessman (associated with the McDougall flour-milling company) and an east London politician who chaired London County Council for a year from March 1902.

[2] John McDougall, who became a Fellow of the Chemical Society, helped establish and grow the family's flour business in London, including construction in 1869 of the first Wheatsheaf Mill on the southern quay of the Millwall Outer Dock;[2] from 1879, this became the place for manufacture of McDougalls self-raising flour.

[3] John McDougall and his brothers had been encouraged by their father to engage in charitable activities, and John eventually left the family business in 1888 to become a local councillor, focusing in particular on lunatic asylums and drains.

[4] He was a member of the Progressive Party and was elected to London County Council, representing - with Will Crooks[5] - the Tower Hamlets district of Poplar from 1889 to 1913.

He was elected chairman of the LCC 1902-03, and, on 26 June 1902, it was announced he would be knighted as part of the Coronation Honours of King Edward VII,[1][4][6] the knighthood being conferred in a ceremony on 24 October 1902.