Sophie Polkamp (born 2 August 1984 in Groningen) is a Dutch field hockey player, who played as a defender for Dutch club Stichtse Cricket en Hockey Club and later for Amsterdamsche Hockey & Bandy Club (AHBC).
Polkamp also plays for the Netherlands national team and was part of the Dutch squad that became world champions at the 2006 Women's Hockey World Cup and won the 2007 Champions Trophy.
At the 2008 Summer Olympics in Beijing she won an Olympic gold medal with the Dutch national team, beating the hosts China in the final 2âÂÂ0. Polkamp was also a gold medallist at the 2012 London Olympic Games, where the Netherlands beat Argentina, also 2âÂÂ0. She announced her retirement from international competition on 3 June 2013, shortly after the AHBC became Dutch champions.
Polkamp is in a relationship with former Dutch field hockey international Robbert Kemperman.