William Rickford Collett (1810–1882)[1] was a British mine owner[2] and Conservative politician.

[5] In the 1837 United Kingdom general election, he unsuccessfully ran as a candidate for Boston in Lincolnshire.

[5] In the late 1840s or early 1850s, Collett moved to New South Wales, becoming a director of the Australian Mutual Mining Association.

[5] In March 1864, Collett moved to New Zealand, becoming the Chief Superintendent of Roads and Bridges.

He returned to the British Isles,[5] contesting a seat for the Conservative Party for the 1869 Tipperary by-election, however was unsuccessful, receiving only 12 votes.