Allen Nathan Guy is a New Zealand former politician of the National Party. He was elected to Parliament in 2005 as a list MP and represented the electorate of Ōtaki after the 2008 election. He served as Minister of Immigration from 2011 to 2013. Guy did not seek re-election at the 2020 election.

The 2005 New Zealand general election on Saturday 17 September 2005 determined the membership of the 48th New Zealand Parliament. One hundred and twenty-one MPs were elected to the New Zealand House of Representatives: 69 from single-member electorates, including one overhang seat, and 52 from party lists.