| Singles | |
|---|---|
| 1991 Australian Indoor Championships | |
| Champion |
|
| Runner-up |
|
| Final score | 6–2, 6–2, 6–2 |
Boris Becker was the defending champion but did not compete that year.
Stefan Edberg won in the final 6–2, 6–2, 6–2 against Brad Gilbert.
All sixteen seeds received a bye to the second round.