Heather O'Neill (born 1973) is a Canadian novelist, poet, short story writer, screenwriter and journalist, who published her debut novel, Lullabies for Little Criminals, in 2006. The novel was subsequently selected for the 2007 edition of Canada Reads, where it was championed by singer-songwriter John K. Samson. Lullabies won the competition. The book also won the Hugh MacLennan Prize for Fiction and was shortlisted for eight other major awards, including the Orange Prize for Fiction and the Governor General's Award and was longlisted for International Dublin Literary Award.Lullabies for Little Criminals was a publishing sensation in Canada and went on to become an international bestseller. O'Neill was named by Chatelaine as one of the most influential women in Canada.