Nijs Cornelis Korevaar (31 December 1927 – 1 December 2016) was a Dutch water polo player who won a European title in 1950.

[2] He competed in the 1948 and 1952 Summer Olympics and won a bronze medal in 1948, placing fifth in 1952.

[4] His son Jan Jaap Korevaar also became an Olympic water polo competitor.

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