| Men's Singles | |
|---|---|
| 2016 Citi Open | |
| Champion |
|
| Runner-up |
|
| Final score | 5–7, 7–6(8–6), 6–4 |
| Draw | 64 (6Q / 4WC) |
| Seeds | 16 |
Kei Nishikori was the defending champion, but chose not to participate this year.
Second-seeded Gaël Monfils won the title, defeating Ivo Karlović in the final: 5–7, 7–6(8–6), 6–4.
All seeds receive a bye into the second round.
Click on the seed number of a player to go to their draw section.
The top four seeds received a bye into the qualifying competition.