1981 Porsche Tennis Grand Prix

The 1981 Porsche Tennis Grand Prix was a women's singles tennis tournament played on indoor carpet courts at the Tennis Sporthalle Filderstadt in Filderstadt in West Germany. The event was part of the Category 4 tier of the 1981 Toyota Series. It was the fourth edition of the tournament and was held from 26 October through 1 November 1981. First-seeded Tracy Austin won the singles event, her fourth successive singles title at the event, and the accompanying $22,000 first-prize money.

Singles
🇺🇸 Tracy Austin defeated 🇺🇸 Martina Navratilova 4–6, 6–3, 6–4
 * It was Austin's 6th title of the year and the 25th of her career.

Doubles
Mima Jaušovec / 🇺🇸 Martina Navratilova defeated 🇺🇸 Barbara Potter / 🇺🇸 Anne Smith 6–4, 6–1