Downpatrick was a United Kingdom Parliament constituency in Ireland, returning one MP.
It was an original constituency represented in Parliament when the Union of Great Britain and Ireland took effect on 1 January 1801.
This constituency was the parliamentary borough of Downpatrick in County Down.
Supplemental notes Ker resigned by accepting the office of Steward of the Chiltern Hundreds, causing a by-election.
This article about a Historic Westminster constituency in Ireland is a stub.