| Date: | 15–21 September |
| Edition: | 77th |
| Category: | Grand Prix |
| Prize Money: | $250,000 |
| Draw: | 64S / 32D |
| Surface: | Clay / outdoor |
| Location: | Hamburg, West Germany |
| Venue: | Am Rothenbaum |
| Champs: |  Henri Leconte[1] |
| Champd: |  Emilio Sánchez / Sergio Casal[2] |
| After Name: | Ebel German Open |
The 1986 German Open, also known by its sponsored name Ebel German Open, was a men's tennis tournament of the 1986 Nabisco Grand Prix and played on outdoor red clay courts. It was the 77th edition of the event. It took place at the Am Rothenbaum in Hamburg, West Germany, from 15 September through 21 September 1986. Fourth-seeded Henri Leconte won the singles title.[3]
See main article: 1986 Grand Prix German Open – Singles. Henri Leconte defeated Miloslav Mečíř, 6–2, 5–7, 6–4, 6–2
Emilio Sánchez / Sergio Casal defeated Boris Becker / Eric Jelen, 6–1, 7–5