Nadja is a novel written by the French surrealist André Breton in 1928. It starts with the question "Who am I?"

It is based on a meeting with a young woman (Nadja) and is taken to be autobiographical description of Breton's meeting with a mad patient of Pierre Janet . It includes references to other Paris surrealists such as Louis Aragon.

Nadja is a 1995 movie about vampires set in modern-day Manhattan.