1983 Lisbon Open – Singles

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.

Seeds

 * 1) 🇪🇸 José Higueras (semifinals)
 * 2) 🇸🇪 Mats Wilander (champion)
 * 3) 🇫🇷 Yannick Noah (final)
 * 4) 🇪🇨 Andrés Gómez (second round)
 * 5) 🇺🇸 Jimmy Arias (second round)
 * 6) 🇭🇺 Balázs Taróczy (first round)
 * 7) 🇪🇸 Manuel Orantes (first round)
 * 8) 🇸🇪 Henrik Sundström (second round)

Key

 * Q – Qualifier