The 2009 NAIA Division I women's basketball tournament was the tournament held by the NAIA to determine the national champion of women's college basketball among its Division I members in the United States and Canada for the . Union (TN) defeated Lambuth in the championship game, 73–63, to claim the Bulldogs' fourth NAIA national title and first since 2006. The tournament was played at the Oman Arena in Jackson, Tennessee.