Serhiy Viktorovych Zhadan (Ukrainian: Сергі́й Ві́кторович Жада́н; born 23 August 1974) is a Ukrainian poet, novelist, essayist, and translator.

Zhadan is an internationally known Ukrainian writer, with 12 books of poetry and 7 novels, and winner of more than a dozen literary awards. In March 2008, the Russian translation of his novel Anarchy in the UKR made the shortlist of the National Bestseller Prize. It was also a contender for Book of the Year at the 2008 Moscow International Book Exhibition. In 2009 he won the Joseph Conrad-Korzeniowski Literary Prize. In 2012 Gunshot and Knife won Ukrainian rating Book of the Year for fiction. His 2010 novel Voroshylovhrad won him the Jan Michalski Prize for Literature in Switzerland, BBC Ukrainian's Book of the Decade award and Brücke Berlin Prize. His selected poems Dynamo Kharkiv won Ukrainian Book of the Year (2014). His book Mesopotamia won the Angelus literature prize in 2015, the Award of the President of Ukraine Ukrainian Book of the Year in 2016