1977 Düsseldorf International

The 1977 Düsseldorf International was a men's Grand Prix tennis circuit tournament held at the Rochusclub in Düsseldorf, West Germany and played on outdoor clay courts. It was the eighth and final edition of the tournament and was held from 16 May until 22 May 1977. First-seeded Wojciech Fibak won the singles title.

Singles
🇵🇱 Wojciech Fibak defeated Ray Moore 6–1, 5–7, 6–2
 * It was Fibak's 2nd singles title of the year and the 5th of his career.

Doubles
Jürgen Fassbender / Karl Meiler defeated 🇦🇺 Paul Kronk / 🇦🇺 Cliff Letcher 6–3, 6–3