The 1988–89 Tennessee Lady Volunteers basketball team represented the University of Tennessee as a member of the Southeastern Conference during the 1988–89 women's college basketball season. Coached by Pat Summitt, the Lady Volunteers finished 35–2, ranked No. 1 in both major polls, and won their second of three national championships in a 5-year span. The Lady Vols started the season ranked No. 1 and never fell below the No. 3 ranking.