1980 ABN World Tennis Tournament – Singles
| Singles | |
|---|---|
| 1980 ABN World Tennis Tournament | |
| Champion |
 Heinz Günthardt
|
| Runner-up |
 Gene Mayer
|
| Final score | 6–2, 6–4 |
| Draw | 32 |
| Seeds | 8 |
Björn Borg was the defending champion of the singles event at the ABN World Tennis Tournament, but did not participate in this edition. Unseeded Heinz Günthardt won the title after a victory in the final against first-seeded Gene Mayer 6–2, 6–4.
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