Roscommon was a UK Parliament constituency in Ireland. The constituency sent two MPs to Westminster from the Act of Union 1800 until the constituency was split into Roscommon North and Roscommon South in 1885.
This constituency comprised the whole of County Roscommon.
This is a list of the people who have represented Roscommon, in the Parliament of the United Kingdom.
1801 (There was no election. The members for the county in the last Parliament of Ireland continued in office.)
Arthur French
Thomas Mahon
Election of 22 July 1802
Arthur French
Edward King
Election of 17 November 1806
Arthur French
Stephen Mahon
Election of 1807
Arthur French
Stephen Mahon
Election of 1818
Arthur French
Stephen Mahon
Election of 16 January 1821
Stephen Mahon
Arthur French
Election of 19 June 1826
Arthur French
Robert King
Election of 9 August 1830
Arthur French
Owen O'Conor
Election of 25 July 1831
Arthur French
Denis O'Conor
Election of 7 December 1832
Denis O'Conor
Fitzstephen French
Election of 1835
Denis O'Conor
Fitzstephen French
Election of 1837
Denis O'Conor
Fitzstephen French
Election of 1841
Denis O'Conor
Fitzstephen French
Election of 9 August 1847
Fitzstephen French
Oliver Dowell John Grace
Election of 1852
Fitzstephen French
Oliver Dowell John Grace
Election of 1857
Fitzstephen French
Oliver Dowell John Grace
Election of 16 May 1859
Fitzstephen French
Thomas William Goff
By-election of 26 March 1860
Charles Owen O'Conor (replacing Goff)
Election of 1865
Fitzstephen French
Charles Owen O'Conor
Election of 1868
Fitzstephen French (died 4 June 1873)
Charles Owen O'Conor
By-election of 24 June 1873
Charles French (replacing Fitzstephen French)
Election of 1874
Charles Owen O'Conor
Charles French
Election of April 1880
Andrew Commins
James Joseph O'Kelly
