Daniel Johnston Riddiford MC (11 March 1914 – 26 October 1974) was a New Zealand politician of the National Party.

He gained an MA in Modern Greats from Oxford, and also an LLB from the University of New Zealand.

[1] Riddiford contested the Petone electorate in the 1957 election,[1] but was beaten by the incumbent, Labour's Michael Moohan.

[3] In the 1960 election, he stood in the Wellington Central electorate and defeated the incumbent, Labour's Frank Kitts.

[4] Riddiford's win in Wellington Central was considered a surprise as the electorate had been held by Labour for the previous 42 years as well as Riddiford's rather aristocratic manner of campaigning which many thought unsuitable within an urban liberal electorate.