1989 Ebel German Open – Singles

Kent Carlsson was the defending champion, but lost in the second round to Goran Ivanišević.

Ivan Lendl won the title by defeating Horst Skoff 6–4, 6–1, 6–3 in the final.

Seeds
The first eight seeds received a bye into the second round. • # Ivan Lendl (champion)

• # Boris Becker (semifinals)

• # Jakob Hlasek (second round)

• # 🇸🇪 Kent Carlsson (second round)

• # (n/a)

• # 🇺🇸 Jimmy Connors (quarterfinals)

• # 🇦🇷 Guillermo Pérez Roldán (third round)

• # 🇺🇸 Aaron Krickstein (second round)

• # 🇪🇸 Emilio Sánchez (second round)

• # 🇸🇪 Jonas Svensson (quarterfinals)

• # 🇦🇷 Alberto Mancini (first round)

• # 🇦🇺 Darren Cahill (first round)

• # Andrei Chesnokov (first round)

• # 🇦🇹 Horst Skoff (final)

• # Alexander Volkov (first round)

• # Marcelo Filippini (second round)