Don Dailey (March 10, 1956 – November 22, 2013) was an American longtime researcher in computer chess and a game programmer. Along with collaborator Larry Kaufman, he was the author of the chess engine Komodo. Dailey started chess programming in the 1980s, and was the author and co-author of multiple commercial as well as academic chess programs. He has been an active poster in computer chess forums and computer Go newsgroups. He was raised as a Jehovah's Witness and served in recent years as an elder in the church of Roanoke. In October 2013, Dailey announced the release of Komodo 6, but also news concerning the future status of Komodo due to his fatal illness of an acute form of leukemia, and introduced Mark Lefler as new member of the Komodo team. Dailey died of leukemia at the age of 57 on November 22, 2013.