County Roscommon (Parliament of Ireland constituency)

County Roscommon was a constituency represented in the Irish House of Commons from 1611 to 1800.

Members of Parliament

 * 1585 Sir Richard Bingham and Thomas Dillon
 * 1613–1615 Sir John King and Sir Oliver St John
 * 1634–1635 Sir Lucas Dillon
 * 1639–1649 Sir Lucas Dillon and Henry (or Geoffrey) Dillon and Robert King
 * 1654 (Protectorate Parliament) Sir Robert King
 * 1657 (Protectorate Parliament) James King
 * 1661 April–December Sir Charles Coote (replaced 1662 by George Lane) and Richard Jones.