Newcastle (Parliament of Ireland constituency)

Newcastle was a constituency represented in the Irish House of Commons until its abolition in 1801.

Newcastle was enfranchised by James I. By the late eighteenth century it had 13 electors, all non-resident. The patronage of the borough was sold by Lord Lanesborough to David La Touche in the between 1776 and 1779, allegedly for £7,000. The borough was disfranchised by the Acts of Union 1800, with effect from 1 January 1801, with £15,000 compensation paid under the will of David La Touche.