This is a list of members of Parliament (MPs) elected to the House of Commons for the Democratic Unionist Party (DUP) for the Fifty-Fourth Parliament of the United Kingdom (2005–2010).
It includes both MPs elected at the 2005 general election, held on 5 May 2005, and those subsequently elected in by-elections.
The list is sorted by the name of the MP, and MPs who did not serve throughout the Parliament are italicised. New MPs elected since the general election are noted at the bottom of the page.