Christos Tsiolkas is an Australian author, playwright, and screenwriter. He is especially known for his novel The Slap, which was both well-received critically and highly successful commercially. Several of his books have been adapted for film and television.

Christos Tsiolkas is the author of nine novels, including Loaded, which was made into the feature film Head-On, The Jesus Man, and Dead Europe, which won the 2006 Age Fiction Prize and the 2006 Melbourne Best Writing Award. He won the Overall Best Book in the Commonwealth Writers' Prize 2009, was shortlisted for the 2009 Miles Franklin Literary Award, longlisted for the 2010 Man Booker Prize, and won the Australian Literary Society Gold Medal for The Slap, which was also announced as the 2009 Australian Booksellers Association and Australian Book Industry Awards Books of the Year.

Barracuda is his fifth novel, followed by Merciless Gods (2014) and Damascus (2019). He is also known as a playwright, essayist, and screenwriter. He lives in Melbourne.