Valentine Lawless, 4th Baron Cloncurry (2 November 1840 – 12 February 1928) was an Irish nobleman.
[1][2][3] Valentine was the eldest son of Edward Lawless, 3rd Baron Cloncurry, and his wife Elizabeth (née Kirwan).
His sister was the noted writer and scientist Emily Lawless.
Valentine married Laura Sophia Priscilla Winn, daughter of Rowland Winn, 1st Baron St Oswald on 23 January 1883; they had two daughters: Laura (Baroness Cloncurry) died in 1891.
[8][5] Politically, the 4th baron was a Unionist, and during the Land War (1879–82) he was chairman of the Property Defence Association, an organisation set up by landlords to oppose the Land League, which he considered an "organised combination to defraud."