The 1988 Citizen Cup was a women's tennis tournament played on outdoor clay courts at the Am Rothenbaum in Hamburg, West Germany and was part of the Category 3 tier of the 1988 WTA Tour.

The tournament ran from July 25 through July 31, 1988.

First-seeded Steffi Graf won the singles title, her second consecutive at the event, and earned $40,000 first-prize money.

[1][2] Steffi Graf defeated Katerina Maleeva 6–4, 6–2 Jana Novotná / Tine Scheuer-Larsen defeated Andrea Betzner / Judith Wiesner 6–4, 6–2