# 1991 Austrian Tennis Grand Prix – Singles

Marion Maruska was the defending champion, but lost in the quarterfinals to Petra Langrová.
Manuela Maleeva-Fragnière won the title by defeating Langrová 6–4, 7–6$^{(7–1)}$ in the final.

## Seeds

* Manuela Maleeva-Fragnière (champion)
* Barbara Paulus (second round)
* Raffaella Reggi (quarterfinals)
* Regina Rajchrtová (semifinals)
* Claudia Kohde-Kilsch (semifinals)
* Laura Golarsa (first round)
* Radka Zrubáková (second round)
* Catherine Tanvier (first round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Manuela Maleeva-Fragnière | 2 | 6 | 6 | | | | |
| 4 | Regina Rajchrtová | 6 | 3 | 4 | | | | |
| 4 | Regina Rajchrtová | 6 | 3 | 4 | 1 | Manuela Maleeva-Fragnière | 6 | 7$^7$ |
| | | | | | | Petra Langrová | 4 | 6$^1$ |
| 5 | Claudia Kohde-Kilsch | 6 | 1 | 4 | | Petra Langrová | 4 | 6$^1$ |
| | Petra Langrová | 3 | 6 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | M Maleeva-Fragnière | 6 | 6 | | | | | | | | | | | | | | | |
| | C Mothes | 0 | 1 | | 1 | M Maleeva-Fragnière | 6 | 6 | | | | | | | | | | |
| | P Thorén | 6 | 6 | | | P Thorén | 1 | 3 | | | | | | | | | | |
| | M Laval | 2 | 2 | | | | | | | 1 | M Maleeva-Fragnière | 6 | 6 | | | | | |
| | S Meier | 7 | 3 | 6 | | | | | | Q | E Maniokova | 2 | 2 | | | | | |
| | C Dahlman | 5 | 6 | 2 | | S Meier | 6 | 1 | 4 | | | | | | | | | |
| Q | E Maniokova | 7 | 2 | 6 | Q | E Maniokova | 4 | 6 | 6 | | | | | | | | | |
| 8 | C Tanvier | 5 | 6 | 1 | | | | | | | | | | 1 | M Maleeva-Fragnière | 2 | 6 | 6 |
| 4 | R Rajchrtová | 6 | 6 | | | | | | | | | | | 4 | R Rajchrtová | 6 | 3 | 4 |
| | L Corsato | 2 | 0 | | 4 | R Rajchrtová | 6 | 6 | | | | | | | | | | |
| WC | S Reichel | 7 | 1 | 0 | | C Cohen | 1 | 0 | | | | | | | | | | |
| | C Cohen | 5 | 6 | 6 | | | | | | 4 | R Rajchrtová | 6 | 6 | | | | | |
| | S Dopfer | 0 | 2 | | | | | | | | P Paradis | 4 | 4 | | | | | |
| | P Paradis | 6 | 6 | | | P Paradis | 6 | 7 | | | | | | | | | | |
| LL | D Monami | 6 | 6 | | LL | D Monami | 3 | 5 | | | | | | | | | | |
| 6 | L Golarsa | 2 | 1 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | C Kohde-Kilsch | 6 | 7 | | | | | | | | | | | | | | | |
| | S Testud | 1 | 5 | | 5 | C Kohde-Kilsch | 6 | 5 | 6 | | | | | | | | | |
| | P Ritter | 6 | 7$^7$ | | | P Ritter | 4 | 7 | 3 | | | | | | | | | |
| | P Etchemendy | 3 | 6$^5$ | | | | | | | 5 | C Kohde-Kilsch | 7$^7$ | 6 | | | | | |
| | P Vásquez | 6 | 2 | 6 | | | | | | 3 | R Reggi | 6$^5$ | 3 | | | | | |
| | E Pampoulova | 4 | 6 | 3 | | P Vásquez | 1 | 1 | | | | | | | | | | |
| | B Reinstadlet | 6$^0$ | 4 | | 3 | R Reggi | 6 | 6 | | | | | | | | | | |
| 3 | R Reggi | 7$^7$ | 6 | | | | | | | | | | | 5 | C Kohde-Kilsch | 6 | 1 | 4 |
| 7 | R Zrubáková | 6 | 6 | | | | | | | | | | | | P Langrová | 3 | 6 | 6 |
| Q | V Milvidskaia | 1 | 3 | | 7 | R Zrubáková | 3 | 1 | | | | | | | | | | |
| | P Langrová | 6 | 6 | | | P Langrová | 6 | 6 | | | | | | | | | | |
| | S Frankl | 2 | 2 | | | | | | | | P Langrová | 6 | 6 | | | | | |
| Q | L Lásková | 3 | 4 | | | | | | | WC | M Maruska | 3 | 1 | | | | | |
| WC | M Maruska | 6 | 6 | | WC | M Maruska | 6 | 6 | | | | | | | | | | |
| Q | S Auer | 1 | 2 | | 2 | B Paulus | 3 | 3 | | | | | | | | | | |
| 2 | B Paulus | 6 | 6 | | | | | | | | | | | | | | | |