2026 San Diego Open – Men's singles
| Men's singles | |
|---|---|
| 2026 San Diego Open | |
| Champion | Zachary Svajda |
| Runner-up | Sebastian Korda |
| Score | 6–4, 7–6(7–5) |
Eliot Spizzirri was the defending champion but chose not to defend his title.
Zachary Svajda won the title after defeating Sebastian Korda 6–4, 7–6(7–5) in the final.