| 2018 German Open | |
|---|---|
| Date | July 23–29 |
| Edition | 112th |
| Category | ATP World Tour 500 |
| Surface | Clay / Outdoor |
| Location | Hamburg, Germany |
| Venue | Am Rothenbaum |
| Champions | |
| Singles | |
 Nikoloz Basilashvili | |
| Doubles | |
 Julio Peralta /  Horacio Zeballos | |
The 2018 German Open (also known as the 2018 German Tennis Championships) was a men's tennis tournament played on outdoor red clay courts. It was the 112th edition of the German Open Tennis Championships and part of the ATP World Tour 500 series of the 2018 ATP World Tour. It took place at the Am Rothenbaum in Hamburg, Germany, from July 23 through 29, 2018.