| ACTIVE | PLAYER | TITLES |
|---|---|---|
| Andre Agassi | 5 | |
| Juan Martín del Potro | 3 | |
| Andy Roddick | 3 | |
| Guillermo Vilas | 3 | |
| Jimmy Connors | 3 | |
| A | Nick Kyrgios | 2 |
| A | Alexander Zverev | 2 |
| José Luis Clerc | 2 | |
| Ivan Lendl | 2 | |
| Michael Chang | 2 | |
| A | Alex de Minaur (Current) | 1 |
| A | Sebastian Korda | 1 |
| A | Gael Monfils | 1 |
| A | Jannik Sinner | 1 |
| A | Dan Evans | 1 |
| A | Milos Raonic | 1 |
| David Nalbandian | 1 | |
| Radek Štěpánek | 1 | |
| Alexandr Dolgopolov | 1 | |
| Thomaz Koch | 1 | |
| Cliff Richey | 1 | |
| Ken Rosewall | 1 | |
| Tony Roche | 1 | |
| Arthur Ashe | 1 | |
| Harold Solomon | 1 | |
| Brian Gottfried | 1 | |
| Andrés Gómez | 1 | |
| Yannick Noah | 1 | |
| Karel Nováček | 1 | |
| Tim Mayotte | 1 | |
| Petr Korda | 1 | |
| Amos Mansdorf | 1 | |
| Stefan Edberg | 1 | |
| Àlex Corretja | 1 | |
| James Blake | 1 | |
| Tim Henman | 1 | |
| Lleyton Hewitt | 1 | |
| Arnaud Clément | 1 |
Table: From 1969 onward, List of Most Washington DC Open titles,
Mubadala Citi DC Open, ATP 500, United States of America, Men, Tennis, Ranked.