# 1990 Internationaux de Strasbourg – Singles

Jana Novotná was the defending champion, but did not compete this year.
Mercedes Paz won the title by defeating Ann Grossman 6–2, 6–3 in the final.

## Seeds

* Isabel Cueto (quarterfinals)
* Gretchen Magers (second round)
* Manon Bollegraf (semifinals)
* Rachel McQuillan (second round)
* Angélica Gavaldón (first round)
* Wiltrud Probst (second round)
* Nicole Provis (first round)
* Patricia Tarabini (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 |
| | Mercedes Paz | 6 | 6 | | | | |
| | Karine Quentrec | 1 | 1 | | | | |
| | Karine Quentrec | 1 | 1 | | Mercedes Paz | 6 | 6 |
| | | | | | Ann Grossman | 2 | 3 |
| 3 | Manon Bollegraf | 6 | 0 | 2 | Ann Grossman | 2 | 3 |
| | Ann Grossman | 2 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 1 | I Cueto | 7 | 6 | | | | | | | | | | | | | | |
| | C Benjamin | 6 | 1 | | 1 | I Cueto | 6 | 6 | | | | | | | | | |
| | V Batut | 4 | 6 | 6 | | V Batut | 1 | 0 | | | | | | | | | |
| | J Faull | 6 | 4 | 4 | | | | | | 1 | I Cueto | 1 | 0 | | | | |
| | B Fulco | 7 | 6 | | | | | | | | M Paz | 6 | 6 | | | | |
| | M Javer | 5 | 0 | | | B Fulco | 1 | 4 | | | | | | | | | |
| | M Paz | 7 | 7 | | | M Paz | 6 | 6 | | | | | | | | | |
| 7 | N Provis | 5 | 6 | | | | | | | | | | | | M Paz | 6 | 6 |
| 4 | R McQuillan | 6 | 6 | | | | | | | | | | | | K Quentrec | 1 | 1 |
| | H Na | 3 | 1 | | 4 | R McQuillan | 6 | 3 | 6 | | | | | | | | |
| Q | S Amiach | 3 | 1 | | | K Quentrec | 3 | 6 | 7 | | | | | | | | |
| | K Quentrec | 6 | 6 | | | | | | | | K Quentrec | 6 | 7 | 6 | | | |
| LL | V Martinek | 4 | 6 | 7 | | | | | | LL | V Martinek | 7 | 6 | 2 | | | |
| | F Haumüller | 6 | 3 | 5 | LL | V Martinek | 6 | 6 | | | | | | | | | |
| | B Romanò | 6 | 6 | | | B Romanò | 4 | 4 | | | | | | | | | |
| 5 | A Gavaldón | 1 | 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 |
| 6 | W Probst | 2 | 6 | 6 | | | | | | | | | | | | | | |
| | E Reinach | 6 | 4 | 1 | 6 | W Probst | 7 | 2 | 1 | | | | | | | | | |
| | F Labat | 6 | 6 | | | F Labat | 5 | 6 | 6 | | | | | | | | | |
| | C MacGregor | 4 | 3 | | | | | | | | F Labat | 1 | 6 | | | | | |
| | M Kidowaki | 6 | 0 | | | | | | | 3 | M Bollegraf | 6 | 7 | | | | | |
| Q | A Dechaume | 7 | 6 | | Q | A Dechaume | 2 | 3 | | | | | | | | | | |
| | N Herreman | 4 | 6 | 4 | 3 | M Bollegraf | 6 | 6 | | | | | | | | | | |
| 3 | M Bollegraf | 6 | 2 | 6 | | | | | | | | | | 3 | M Bollegraf | 6 | 0 | 2 |
| 8 | P Tarabini | 6 | 6 | | | | | | | | | | | | A Grossman | 2 | 6 | 6 |
| | E Pampoulova | 7 | 7 | | | E Pampoulova | 6 | 6 | | | | | | | | | | |
| | P Paradis | 1 | 3 | | Q | A Keller | 4 | 4 | | | | | | | | | | |
| Q | A Keller | 6 | 6 | | | | | | | | E Pampoulova | 1 | 3 | | | | | |
| | M Strandlund | 6 | 2 | 0 | | | | | | | A Grossman | 6 | 6 | | | | | |
| | A Grossman | 0 | 6 | 6 | | A Grossman | 6 | 6 | | | | | | | | | | |
| Q | C Bassett-Seguso | 6 | 3 | 3 | 2 | G Magers | 3 | 4 | | | | | | | | | | |
| 2 | G Magers | 1 | 6 | 6 | | | | | | | | | | | | | | |