Andrus Kivirähk (born 17 August 1970) is an Estonian writer. As of, 2004, 25,000 copies of his novel Rehepapp ehk November (Old Barny aka November) had been sold, making him the most popular 21st century Estonian writer. His new book Mees, kes teadis ussisõnu (The Man Who Spoke Snakish) (2007) has been one of the top selling books in Estonia. He has been a member of the Estonian Writers' Union (in Estonian: Eesti Kirjanike Liit) since 1996.