Sergio Fernández may refer to:
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Sergio Fernández Fernández (1939-2024), Chilean politician
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Sergio Fernández González (rower) (born 1967), Argentine rower
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Sergio Villanueva Fernández (born 1975), Spanish footballer
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Sergio Fernández (footballer, born 1975), Spanish footballer
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Sergio Fernández (footballer, born 1977), Spanish footballer
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Sergio Fernández (hurdler) (born 1993), Spanish hurdler
{{hndis, Fernandez, Sergio