1971 Grand Prix German Open
| 1971 Grand Prix German Open | |
|---|---|
| Date | 17 May – 23 May |
| Edition | 63rd |
| Category | Grand Prix circuit |
| Draw | 64S/16D |
| Surface | Clay / outdoor |
| Location | Hamburg, West Germany |
| Venue | Am Rothenbaum |
| Champions | |
| Singles | |
 Andrés Gimeno [1] | |
| Doubles | |
 John Alexander / Andrés Gimeno [2] | |
The 1971 Grand Prix German Open was a men's tennis tournament played on outdoor red clay courts. It was the 63rd edition of the event and was part of the 1971 Pepsi-Cola Grand Prix circuit. It took place at the Am Rothenbaum in Hamburg, West Germany, from 17 May through 23 May 1971. Andrés Gimeno won the singles title.
Champions
Singles
Andrés Gimeno defeated 
Péter Szőke 6–3, 6–2, 6–2
Doubles
John Alexander / Andrés Gimeno defeated Dick Crealy / Allan Stone 6–4, 7–5, 7–9, 6–4