1998–99 Purdue Boilermakers men's basketball team

The 1998–99 Purdue Boilermakers men's basketball team represented Purdue University as a member of the Big Ten Conference during the 1998–99 NCAA Division I men's basketball season. The team was led by Gene Keady and played its home games at Mackey Arena.

Schedule and results
!colspan=9 style=| Regular season

!colspan=9 style=| Big Ten Tournament

!colspan=9 style=| NCAA Tournament