Juhan af Grann (born 3 December 1944, in Kuopio, Finland as Heikki Juhani Grann) is a Finnish film director and producer known for his UFO documentaries. His most notable documentary is Mankind's Last Exodus, released in 1998 and sold in over 120 countries. Grann is noted for his interest in the topic of unidentified flying objects, but he is also known for outlandish promotion.