1979 ABN World Tennis Tournament – Singles

Jimmy Connors was the defending champion of the singles event at the ABN World Tennis Tournament, but did not participate in this edition. First-seeded Björn Borg won the title after a victory in the final against third-seeded John McEnroe 6–4, 6–2.

Seeds
• #🇸🇪 Björn Borg (champion)

• #🇺🇸 Vitas Gerulaitis (quarterfinals)

• #🇺🇸 John McEnroe (final)

• #🇲🇽 Raúl Ramírez (quarterfinals)

• #🇷🇴 Ilie Năstase (first round)

• #🇦🇷 José Luis Clerc (second round)

• #🇵🇱 Wojtek Fibak (quarterfinals)

• #🇬🇧 Buster Mottram (second round)