Joshua Allen, 2nd Viscount Allen, LLD (17 September 1685 – 5 December 1742), was an Irish peer and politician.
He was the son of The 1st Viscount Allen, and succeeded to his father's titles on 8 November 1726. Between 1709 and 1727, he represented County Kildare in the Irish House of Commons.
The future Lord Allen married Margaret du Pass on 18 November 1707.[1] They had seven children, of whom at least three died young. They included:[2]