Patrick William Daines Barrington, 11th Viscount Barrington of Ardglass (29 October 1908 – 6 April 1990) was an Irish peer and a writer of humorous verse.
He was the son of the Hon. Walter Bernard Louis Barrington and Eleanor Nina Snagge. He was educated at Eton College and at Magdalen College, Oxford University. He is remembered for his humorous verse, which was featured in Punch Magazine during the 1930s. A collection of his poems, including his best-known work, The Diplomatic Platypus, was published:
On 4 October 1960 he succeeded to the titles of 5th Baron Shute of Becket, co. Berks; 11th Viscount Barrington of Ardglass, co. Down; and 11th Baron Barrington of Newcastle, Co. Limerick. On his death, his titles became extinct.