Silvia Bonastre Peremateu (born 29 November 1981 in Terrassa, Catalonia) is a field hockey midfield player from Spain, who represented her native country at the 2004 Summer Olympics in Athens, Greece and at the 2008 Summer Olympics in Beijing.

She was also a member of the Spain national team that finished fourth at the 2006 Women's Hockey World Cup in Madrid, under the guidance of head coach Pablo Usoz.

Her sister, Berta Bonastre, still plays for the National Team.

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