# 1983 Donnay Open – Singles

Balázs Taróczy was the defending champion, but did not compete this year.
Henrik Sundström won the title by defeating Manuel Orantes 7–5, 4–6, 6–3 in the final.

## Seeds

* Jimmy Arias (second round)
* Henri Leconte (second round)
* Mel Purcell (first round)
* Pablo Arraya (second round)
* Dominique Bedel (first round)
* Pat Cash (first round)
* Manuel Orantes (final)
* Bernard Boileau (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 | Final | Final | Final | Final | Final |
| | Mario Martínez | 5 | 2 | | | | | |
| | Henrik Sundström | 7 | 6 | | | | | |
| | Henrik Sundström | 7 | 6 | | Henrik Sundström | 7 | 4 | 6 |
| | | | | 7 | Manuel Orantes | 5 | 6 | 3 |
| | Fernando Luna | 2 | 2 | 7 | Manuel Orantes | 5 | 6 | 3 |
| 7 | Manuel Orantes | 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 | J Arias | 6 | 1 | 7 | | | | | | | | | | | | | |
| | H Solomon | 4 | 6 | 5 | 1 | J Arias | 7 | 5 | 4 | | | | | | | | |
| | G Forget | 2 | 2 | | Q | C Casa | 5 | 7 | 6 | | | | | | | | |
| Q | C Casa | 6 | 6 | | | | | | | Q | C Casa | 2 | 1 | | | | |
| Q | J Windahl | 6 | 1 | 4 | | | | | | | M Martínez | 6 | 6 | | | | |
| | G Moretton | 2 | 6 | 6 | | G Moretton | 6 | 1 | | | | | | | | | |
| | M Martínez | 6 | 6 | | | M Martínez | 7 | 6 | | | | | | | | | |
| 5 | D Bedel | 0 | 3 | | | | | | | | | | | | M Martínez | 5 | 2 |
| 3 | M Purcell | 2 | 6 | 2 | | | | | | | | | | | H Sundström | 7 | 6 |
| | H Sundström | 6 | 1 | 6 | | H Sundström | 6 | 6 | | | | | | | | | |
| | C Motta | 2 | 2 | | | I Năstase | 3 | 4 | | | | | | | | | |
| | I Năstase | 6 | 6 | | | | | | | | H Sundström | 4 | 7 | 6 | | | |
| | J Avendaño | 6 | 2 | 6 | | | | | | | J Avendaño | 6 | 6 | 3 | | | |
| | B Fritz | 4 | 6 | 1 | | J Avendaño | 7 | 6 | | | | | | | | | |
| Q | U Pinner | 6 | 6 | | Q | U Pinner | 6 | 2 | | | | | | | | | |
| 8 | B Boileau | 3 | 2 | | | | | | | | | | | | | | |

### 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 |
| 6 | P Cash | 4 | 0 | | | | | | | | | | | | | | |
| | F Luna | 6 | 6 | | | F Luna | 7 | 4 | 6 | | | | | | | | |
| | M Tideman | 6 | 6 | | | M Tideman | 6 | 6 | 1 | | | | | | | | |
| | W Masur | 3 | 2 | | | | | | | | F Luna | 7 | 6 | | | | |
| | J Brown | 6 | 6 | 6 | | | | | | | J Brown | 5 | 2 | | | | |
| | JL Haillet | 3 | 7 | 3 | | J Brown | 7 | 6 | | | | | | | | | |
| | C Panatta | 0 | 5 | | 4 | P Arraya | 6 | 2 | | | | | | | | | |
| 4 | P Arraya | 6 | 7 | | | | | | | | | | | | F Luna | 2 | 2 |
| 7 | M Orantes | 6 | 6 | | | | | | | | | | | 7 | M Orantes | 6 | 6 |
| | R Krishnan | 3 | 3 | | 7 | M Orantes | 7 | 6 | | | | | | | | | |
| Q | J Aguilera | 6 | 6 | | Q | J Aguilera | 6 | 3 | | | | | | | | | |
| | B Manson | 2 | 3 | | | | | | | 7 | M Orantes | 6 | 6 | | | | |
| | T Tulasne | 7 | 1 | 7 | | | | | | | T Tulasne | 2 | 1 | | | | |
| | A Tous | 6 | 6 | 5 | | T Tulasne | 6 | 7 | | | | | | | | | |
| | J Velasco Sr. | 4 | 6 | | 2 | H Leconte | 3 | 6 | | | | | | | | | |
| 2 | H Leconte | 6 | 7 | | | | | | | | | | | | | | |