| Mode: | Basketball |
| Sex: | none |
| Year: | 1989–90 |
| Prev Year: | 1988–89 |
| Next Year: | 1990–91 |
| Team: | Louisiana Tech Lady Techsters |
| Conference: | American South Conference |
| Record: | 32–1 |
| Conf Record: | 10–0 |
| Coachrank: | 3 |
| Aprank: | 1 |
| Hc Year: | 5th |
| Champion: | American South champions |
| Tourney Result: | Runner-up |
The 1989–90 Louisiana Tech Lady Techsters basketball team represented Louisiana Tech University during the 1989–90 NCAA Division I women's basketball season. The team was led by fifth–year head coach Leon Barmore, who led the team to a 32–1 record, the NCAA tournament, and the program's fourth straight Final Four.[1] The Lady Techsters played their home games at the Thomas Assembly Center in Ruston, Louisiana as a member of the American South Conference.
|-!colspan=6 style=""| Regular season
|-!colspan=6 style=""| American South tournament|-!colspan=6 style=""| NCAA tournament|-
See main article: 1989–90 NCAA Division I women's basketball rankings.