Nic Sheff is an American writer best known for his memoirs and his work as a writer, story editor, and co-producer. He has gained recognition for his candid accounts of his personal struggles with addiction. His memoirs include the New York Times bestseller Tweak: Growing Up On Methamphetamines and We All Fall Down: Living with Addiction.

Nic Sheff's work extends beyond memoirs as he has also authored several novels aimed at young adults. He resides in Los Angeles, California, where he actively contributes to the film and television industry.