1989 Stella Artois Championships – Singles

Boris Becker was the defending champion but did not compete that year.

Ivan Lendl won in the final 4–6, 6–3, 6–4 against Christo van Rensburg.

Seeds

 * 1)  Ivan Lendl (champion)
 * 2) 🇸🇪 Stefan Edberg (first round)
 * 3) 🇸🇪 Mats Wilander (quarterfinals)
 * 4) 🇺🇸 Tim Mayotte (second round)
 * 5) 🇺🇸 Kevin Curren (second round)
 * 6) 🇮🇱 Amos Mansdorf (first round)
 * 7) 🇦🇺 Darren Cahill (second round)
 * 8)  Christo van Rensburg (final)
 * 9)  Alexander Volkov (first round)
 * 10) 🇦🇺 John Fitzgerald (third round)
 * 11) 🇦🇺 Mark Woodforde (second round)
 * 12) 🇺🇸 Paul Annacone (semifinals)
 * 13)  Patrik Kühnen (first round)
 * 14) 🇺🇸 Derrick Rostagno (semifinals)
 * 15)  Eric Jelen (third round)
 * 16) 🇦🇺 Wally Masur (third round)