John Leng Sturrock (23 August 1878[1][2] – 22 July 1943)[3] was a Scottish newspaper publisher and Liberal politician.

[5] Sturrock's grandfather was Sir John Leng, a journalist and newspaper proprietor, who was Member of Parliament for Dundee from 1899 to 1906.

His great-uncle was Sir William Christopher Leng, who was also a newspaperman and active in Conservative politics in Sheffield.

[11] Sturrock stood down from Montrose Burghs at the 1924 general election and contested Tottenham North as a Constitutionalist.

[13] The best known of these candidates was Winston Churchill who had fought a by-election at Abbey Division of Westminster in March 1924 as a Constitutionalist and who then contested Epping in Essex at the general election in October 1924 under the same banner.