The Primera División de Fútbol Profesional Apertura 1998 season (officially "Copa Pilsener Apertura 1999") is one of two short tournaments that take up the entire year to determine the champion(s) of Salvadoran football.

The season started on August 28, 1998, and finished on December 27, 1998.

The season saw Alianza win its 7th league title after a 1-0 victory over C.D.

Teams promoted Teams relegated The following people associated with the Primera Division have died between the middle of 1998 and end of 1998.

Luis Ángel Firpo Municipal Limeno Santa Clara Sonsonate