Arthur Seymour John Tessimond [ 19 July 1902, in Birkenhead – 13 May 1962, in Chelsea, London ] was an English poet.
He went to Birkenhead School until the age of 14, before being sent to Charterhouse School, but ran away at age 16. From 1922 to 1926 he attended the University of Liverpool, where he read English literature, French, Philosophy and Greek. He later moved to London where he worked in bookshops, and also as a copywriter.
After avoiding military service in World War II, he later discovered he was unfit for service. He suffered from bipolar disorder, and received electro-convulsive therapy.