1988 Porsche Tennis Grand Prix
Date	10–16 October
Edition	11th
Category	Category 4
Draw	32S / 16D
Prize money	$250,000
Surface	Hard / indoor
Location	Filderstadt, West Germany
Venue	Filderstadt Tennis Centre
Champions
Singles
Martina Navratilova
Doubles
Iwona Kuczyńska Martina Navratilova
← 1987 · Porsche Tennis Grand Prix · 1989 →

The 1988 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor carpet courts at the Filderstadt Tennis Centre in Filderstadt in West Germany and was part of the Category 4 tier of the 1988 WTA Tour. It was the 11th edition of the tournament and was held from 10 October to 16 October 1988. First-seeded Martina Navratilova won the singles title, her third consecutive and fifth in total.^[1][2]

Finals

Singles

Martina Navratilova defeated Chris Evert 6–2, 6–3

• It was Navratilova's 7th singles title of the year and the 136th of her career.

Doubles

Iwona Kuczyńska / Martina Navratilova defeated Raffaella Reggi / Elna Reinach 6–1, 6–4

• It was Kuczynska's only title of the year and the 1st of her career. It was Navratilova's 6th doubles title of the year and the 141st of her career.

Prize money