Sergio Fernández

• Sergio Fernández Larraín, Chilean diplomat and politician
• Sergio Fernández Aguayo, Chilean politician and diplomat
• Sergio Fernández Fernández, Chilean politician
• Sergio Fernández González (rower), Argentine rower
• Sergio Villanueva Fernández, Spanish footballer
• Sergio Fernández (footballer, born 1975), Spanish footballer
• Sergio Fernández (footballer, born 1977), Spanish footballer
• Sergio Fernández (hurdler), Spanish hurdler