Óscar Hernández (tennis)
Óscar Hernández Pérez is a former professional male tennis player from Spain. He turned pro in 1998 and achieved his career-high singles ranking of World No. 48 in October 2007. Hernández scored an upset in the first round of the 2007 Rome Masters, when he defeated the World No. 20, Lleyton Hewitt, 3–6, 7–6, 6–1. Hernández announced his retirement from tennis on 22 July 2011.
ATP career finals
Doubles: 1 (1 win, 1 loss)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Sep 2004 | Romanian Open, Romania | International | Clay |  José Acasuso | Lucas Arnold Ker Mariano Hood | 6–7, 1–6 |
| Win | 1–1 | 2007 Movistar Open – Doubles| | Chile Open, Chile | International | Clay |  Paul Capdeville |  Albert Montañés Rubén Ramírez Hidalgo | 4–6, 6–4, |
ATP Challenger titles
Singles
| No. | Date | Tournament | Surface | Opponent in the final | Score |
| 1. | 5 May 2003 | Birmingham | Clay |  Alex Kim | 6–2, 6–1 |
| 2. | 1 September 2003 | Genova | Clay |  Vincenzo Santopadre | 6–2, 6–2 |
| 3. | 15 September 2003 | Tehran | Clay |  Jean-Claude Scherrer | 4–6, 6–4, 6–3 |
| 4. | 4 October 2004 | Seville | Clay |  Alexander Waske | 7–5, 3–6, 6–4 |
| 5. | 11 October 2004 | Barcelona | Clay | Santiago Ventura | 6–3, 3–6, 5–1 ret. |
| 6. | 1 November 2004 | Santiago | Clay |  Nicolás Lapentti | 7–6, 6–4 |
| 7. | 13 June 2005 | Braunschweig | Clay | Nicolás Lapentti | 6–3, 6–3 |
| 8. | 5 February 2007 | Florianópolis | Clay | Mariano Zabaleta | 7–5, 7–6 |
| 9. | 18 June 2007 | Braunschweig | Clay | Florian Mayer | 6–2, 1–6, 6–1 |
| 10. | 30 June 2009 | Braunschweig | Clay |  Teymuraz Gabashvili | 6–1, 3–6, 6–4 |