| 1991 ATP German Open | |
|---|---|
| Date | 6–13 May |
| Edition | 85th |
| Category | ATP Super 9 |
| Prize money | $750,000 |
| Surface | Clay / outdoor |
| Location | Hamburg, Germany |
| Venue | Rothenbaum Tennis Center |
| Champions | |
| Singles | |
 Karel Nováček[1] | |
| Doubles | |
 Sergio Casal / Emilio Sánchez[2] | |
The 1991 German Open was a men's tennis tournament played on outdoor clay courts. It was the 85th edition of the Hamburg Masters (Hamburg Masters), 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 6 May until 13 May 1991. Karel Nováček, who was seeded 13th, won the singles title.
Finals[edit]
Singles[edit]
Karel Nováček defeated 
Magnus Gustafsson, 6–3, 6–3, 5–7, 0–6, 6–1
- It was Karel Nováček's 2nd title of the year, and his 5th overall. It was his 1st Masters title of the year, and overall.
Doubles[edit]
Sergio Casal / Emilio Sánchez defeated 
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Danie Visser, 4–6, 6–3, 6–2
References[edit]
- ^ "1991 Hamburg – Singles draw". Association of Tennis Professionals (ATP).
- ^ "1991 Hamburg – Doubles draw". Association of Tennis Professionals (ATP).