Frederick Riley Cooke (28 April 1867 – 26 June 1930) was a New Zealand tailor, socialist and trade unionist.

He stood as a parliamentary candidate in the Christchurch East electorate in 1905, 1908, and 1911 and received few votes, but he regarded his candidacies as a good propaganda tool.

[1] At the unity conference in 1913, Cooke was a forceful opponent of compulsory military training.

[3] Cooke unsuccessfully contested further parliamentary elections for the Labour Party: Ashburton in 1922, Christchurch North in 1925, and Waitaki in 1928.

[1] Cooke died in Christchurch on 26 June 1930; he had suffered from diabetes for the last decade and had developed prostate cancer.