You're likely thinking of
André Gide, a French author who won the Nobel Prize in Literature in 1947. He was a prominent figure in the modernist literary movement, known for his introspective and often controversial works that explored themes of sexuality, faith, and morality.
While there might be other "André"s who have received the Nobel Prize, Andre Gide is the most prominent and well-known. If you have more information about the specific "André" you're looking for, I might be able to give you more details.