| Champ: |  Mats Wilander |
| Runner: |  Yannick Noah |
| Score: | 2-6, 7-6, 6-4 |
| Draw: | 32 |
| Seeds: | 8 |
| Type: | singles doubles |
| Before Year: | no |
| After Year: | no |
See main article: 1983 Lisbon Open.
The 1983 Lisbon Open – Singles was an event of the 1983 Lisbon Open men's tennis tournament held in Lisbon, Portugal from 4 April until 10 April 1983. The draw comprised 32 players and eight players were seeded. Second-seeded Mats Wilander won the singles title, defeating third-seeded Yannick Noah in the final, 2–6, 7–6, 6–4.[1]
José Higueras (semifinals) Mats Wilander (champion) Yannick Noah (final)
Andrés Gómez (second round)
Jimmy Arias (second round)
Balázs Taróczy (first round) Manuel Orantes (first round) Henrik Sundström (second round)