| Doubles | |
|---|---|
| 1991 ATP German Open | |
| Champion |
|
| Runner-up |
|
| Final score | 7–6, 7–6 |
The 1991 German Open was a tennis tournament played on outdoor clay courts and was part of the ATP Super 9 of the 1991 ATP Tour. It took place at the Rothenbaum Tennis Center in Hamburg, Germany, from May 6 through May 13, 1991.Sergio Casal and Emilio Sánchez won in the final against Cássio Motta and Danie Visser, 7–6, 7–6.