Rangers played a total of 55 competitive matches during the 1998–99 season.

They started the season under new management with Dick Advocaat replacing Walter Smith.

Success quickly followed and Advocaat built a team that gave the club their first domestic treble since the 1992–93 season.

The club enjoyed its best season in Europe since 1992–93 as well, reaching the third round of the UEFA Cup before being knocked out by Italian side Parma.

List of squad players, including number of appearances by competition All results are written with Rangers' score first.