| Champ: |  Fabio Fognini |
| Runner: |  Andrej Martin |
| Score: | 6–4, 6–1 |
| Draw: | 28 (4 / 3) |
| Seeds: | 8 |
| Type: | singles doubles |
See main article: article and 2016 Croatia Open Umag. Dominic Thiem was the defending champion, but chose to compete in Kitzbühel instead.
Fabio Fognini won the title, defeating Andrej Martin in the final, 6–4, 6–1.
The top four seeds receive a bye into the second round.
The top two seeds received a bye into the qualifying competition.