# 1991 Internationaux de Strasbourg – Singles

Mercedes Paz was the defending champion, but lost in the first round to Radka Zrubáková.
Zrubáková won the title by defeating Rachel McQuillan 7–6$^{(7–3)}$, 7–6$^{(7–3)}$ in the final.

## Seeds

The first four seeds received a bye into the second round.
* Judith Wiesner (quarterfinals)
* Lori McNeil (quarterfinals)
* Sabine Appelmans (second round)
* Laura Gildemeister (quarterfinals)
* Federica Bonsignori (first round)
* Manon Bollegraf (first round)
* Mercedes Paz (first round)
* Susan Sloane (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 | Final | Final | Final |
| Rachel McQuillan | 6 | 6 | | | |
| Naoko Sawamatsu | 4 | 3 | | | |
| Naoko Sawamatsu | 4 | 3 | Rachel McQuillan | 6$^3$ | 6$^3$ |
| | | | Radka Zrubáková | 7$^7$ | 7$^7$ |
| Radka Zrubáková | 6 | 6 | Radka Zrubáková | 7$^7$ | 7$^7$ |
| Anne Minter | 1 | 3 | | | |

### 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 |
| | | | | | 1 | J Wiesner | 6 | 6 | | | | | | | | |
| Q | O Graveraux | 2 | 3 | | | V Martinek | 4 | 4 | | | | | | | | |
| | V Martinek | 6 | 6 | | | | | | | 1 | J Wiesner | 4 | 6$^3$ | | | |
| | R McQuillan | 6 | 7$^7$ | | | | | | | | R McQuillan | 6 | 7$^7$ | | | |
| | L Golarsa | 0 | 6$^0$ | | | R McQuillan | 6 | 6 | | | | | | | | |
| | P Langrová | 3 | 6 | 6 | | P Langrová | 1 | 1 | | | | | | | | |
| 5 | F Bonsignori | 6 | 3 | 0 | | | | | | | | | | R McQuillan | 6 | 6 |
| | | | | | | | | | | | | | | N Sawamatsu | 4 | 3 |
| | | | | | 3 | S Appelmans | 4 | 3 | | | | | | | | |
| | N Sawamatsu | 5 | 6 | 6 | | N Sawamatsu | 6 | 6 | | | | | | | | |
| Q | S Testud | 7 | 4 | 2 | | | | | | | N Sawamatsu | 6 | 6 | | | |
| | C Kohde-Kilsch | 6 | 6 | | | | | | | | C Kohde-Kilsch | 3 | 1 | | | |
| | V Batut | 4 | 2 | | | C Kohde-Kilsch | 6 | 6$^5$ | 7$^7$ | | | | | | | |
| LL | A Kijimuta | 5 | 6 | 6 | LL | A Kijimuta | 4 | 7$^7$ | 6$^5$ | | | | | | | |
| 8 | S Sloane | 7 | 3 | 2 | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 7 | M Paz | 3 | 2 | | | | | | | | | | | | |
| | R Zrubáková | 6 | 6 | | | R Zrubáková | 7$^{12}$ | 6 | | | | | | | |
| | M de Swardt | 6 | 7 | | | M de Swardt | 6$^{10}$ | 1 | | | | | | | |
| | A Földényi | 1 | 5 | | | | | | | R Zrubáková | 6 | 6 | | | |
| | N Herreman | 3 | 5 | | | | | | 4 | L Gildemeister | 0 | 3 | | | |
| | E Brioukhovets | 6 | 7 | | | E Brioukhovets | 2 | 6$^3$ | | | | | | | |
| | | | | | 4 | L Gildemeister | 6 | 7$^7$ | | | | | | | |
| | | | | | | | | | | | | | R Zrubáková | 6 | 6 |
| 6 | M Bollegraf | 7$^7$ | 2 | 1 | | | | | | | | | A Minter | 1 | 3 |
| | K Quentrec | 6$^5$ | 6 | 6 | | K Quentrec | 2 | 2 | | | | | | | |
| | A Minter | 0 | 7$^9$ | 6 | | A Minter | 6 | 6 | | | | | | | |
| | I Cueto | 6 | 6$^7$ | 3 | | | | | | A Minter | 6 | 7$^7$ | | | |
| Q | S Wasserman | 2 | 3 | | | | | | 2 | L McNeil | 1 | 6$^5$ | | | |
| | A Grossman | 6 | 6 | | | A Grossman | 2 | 3 | | | | | | | |
| | | | | | 2 | L McNeil | 6 | 6 | | | | | | | |