1998–99 New Mexico State Aggies basketball team

1998–99 New Mexico State Aggies men's basketball
Big West Regular season co-champions
Big West tournament champions
NCAA tournament, First round
ConferenceBig West Conference
Record23–10 (12–4 Big West)
Head coach
Home arenaPan American Center
1998–99 Big West men's basketball standings
Conf.Overall
TeamW L PCTW L PCT
East Division
Boise State124 .750218  .724
New Mexico State124 .7502310  .697
Idaho115 .6881611  .593
Utah State88 .5001513  .536
Nevada412 .250818  .308
North Texas412 .250422  .154
West Division
UC Santa Barbara124 .7501513  .536
Long Beach State97 .5631315  .464
Pacific97 .5631413  .519
Cal State Fullerton79 .4381314  .481
Cal Poly610 .3751116  .407
UC Irvine214 .125620  .231
1999 Big West tournament winner
As of April 10, 1999
Rankings from AP poll

The 1998–99 New Mexico State Aggies basketball team represented New Mexico State University in the 1998–99 college basketball season. This was Lou Henson's 2nd season as head coach at his alma mater. The Aggies played their home games at Pan American Center and competed in the Big West Conference. They finished the season 23–10, 12–4 in Big West play to tie for the conference regular season title. They won the Big West tournament, and received an automatic bid to the NCAA tournament as No. 14 seed in the Midwest region.

In the opening round, New Mexico State was defeated by No. 3 seed and defending National champion Kentucky, 82–60.