Nausea (orig. French La Nausée) is an epistolary novel by the existentialist philosopher Jean-Paul Sartre, published in 1938 and written while he was teaching at the lycée of Le Havre. This is Sartre's first novel and one of his best-known.
The novel concerns a dejected historian in a town similar to Le Havre, who becomes convinced that inanimate objects and situations encroach on his ability to define himself, on his intellectual and spiritual freedom, evoking in the protagonist a sense of nausea.
It is widely considered one of the canonical works of existentialism. Sartre was awarded (but declined) the Nobel Prize for literature in 1964. They recognized him "for his work which, rich in ideas and filled with the spirit of freedom and the quest for truth, has exerted a far-reaching influence on our age." He was one of the few people ever to have declined the award, referring to it as merely a function of a bourgeois institution.