The Sea, The Sea is a novel by Iris Murdoch. Published in 1978, it was her nineteenth novel. It won the 1978 Booker Prize.

Dame Jean Iris Murdoch was an Irish and British novelist and philosopher. Murdoch is best known for her novels about good and evil, sexual relationships, morality, and the power of the unconscious. Her first published novel, Under the Net (1954), was selected in 1998 as one of Modern Library's 100 best English-language novels of the 20th century. Her 1978 novel The Sea, The Sea won the Booker Prize. In 1987, she was made a Dame by Queen Elizabeth II for services to literature. In 2008, The Times ranked Murdoch twelfth on a list of "The 50 greatest British writers since 1945".