The 2005 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), playing in its home town of Jackson, defeated Oklahoma City in the championship game, 67–63, to claim the Bulldogs' second NAIA national title and first since 1998. The tournament was played at the Oman Arena in Jackson, Tennessee.