Table: From 2015 onward, list of Most Millennium Estoril Open Titles, ATP 250, Portugal, Men, Tennis, Ranked.
*Estoril hosted an ATP Challenger 175 in 2025
| ACTIVE | PLAYER | TITLES |
|---|---|---|
| Richard Gasquet | 1 | |
| Nicolás Almagro | 1 | |
| A | Pablo Carreño Busta | 1 |
| João Sousa | 1 | |
| A | Stefanos Tsitsipas | 1 |
| Albert Ramos Viñolas | 1 | |
| A | Sebastián Báez | 1 |
| A | Casper Ruud | 1 |
| A | Hubert Hurkacz | 1 |
| A | Luca Van Assche (Current) | 1 |