| Date: | 7–13 May |
| Edition: | 76th |
| Category: | Grand Prix |
| Prize Money: | $250,000 |
| Draw: | 56S / 28D |
| Surface: | Clay / outdoor |
| Location: | Hamburg, West Germany |
| Venue: | Am Rothenbaum |
| Champs: |  Juan Aguilera[1] |
| Champd: |  Stefan Edberg / Anders Järryd[2] |
| Before Name: | German Open |
| After Name: | Grand Prix German Open |
| Main Name: | Grand Prix German Open |
The 1984 Ebel German Open was a men's tennis tournament played on outdoor clay courts at Am Rothenbaum in Hamburg, West Germany that was part of the 1984 Grand Prix circuit. It was the 76th edition of the event and took place from 7 May through 13 May 1984. Unseeded Juan Aguilera won the singles title.
See main article: 1984 Ebel German Open – Singles. Juan Aguilera defeated Henrik Sundström, 6–4, 2–6, 2–6, 6–4, 6–4
See main article: 1984 Ebel German Open – Doubles. Stefan Edberg / Anders Järryd defeated Heinz Günthardt / 
Balázs Taróczy, 6–3, 6–1