Giles Goat-Boy (1966) is the fourth novel by American writer John Barth. It is metafictional comic novel in which the universe is portrayed as a university campus in an elaborate allegory of both the hero's journey and the Cold War. Its title character is a human boy raised as a goat, who comes to believe he is the Grand Tutor, the predicted Messiah. The book was a surprise bestseller for the previously obscure Barth, and in the 1960s had a cult status. It marks Barth's leap into American postmodern fabulism.