1983 World Championship Tennis Finals – Singles

Ivan Lendl was the defending champion but lost in the final 6–2, 4–6, 6–3, 6–7, 7–6 to John McEnroe.

Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.


 * 1)  Ivan Lendl (final)
 * 2) 🇺🇸 John McEnroe (champion)
 * 3) 🇦🇷 Guillermo Vilas (quarterfinals)
 * 4)  Kevin Curren (quarterfinals)