Mervyn Archdall (c. 1724 – 18 June 1813) of Castle Archdale, Enniskillen, County Fermanagh and Trilleck, County Tyrone was a British High Sheriff and Member of Parliament.
[1] He was educated at Trinity College Dublin and studied law at Lincoln's Inn in London.
[1] After the Acts of Union he was a co-opted MP in the first Parliament of the United Kingdom for County Fermanagh from 1801 to 1802, after which he handed the seat to his son and heir, Mervyn Archdall Jr.[1] In 1762, he married the Hon.
Together, Mervyn and Mary were the parents of four sons and eight daughters.
In 1773 to 1778 he rebuilt Castle Archdale, which had been burned in the uprising of 1689 to 1690.