Hicham Arazi was the defending champion, but lost in the quarterfinals this year.
Andrea Gaudenzi won the title, defeating Álex Calatrava 6–4, 5–7, 6–4 in the final.
Seeds
Albert Portas (quarterfinals) Hicham Arazi (quarterfinals) Karim Alami (semifinals) Andrea Gaudenzi (champion) Sjeng Schalken (second round, withdrew) Juan Antonio Marín (quarterfinals) Jordi Burillo (second round) Davide Sanguinetti (second round)
Draw
Finals
Top half
Bottom half
External links Association of Tennis Professionals (ATP) – 1998 Grand Prix Hassan II Men's Singles draw