Reindert "Rein" Berend Jan de Waal (24 November 1904, Amsterdam – 31 May 1985, Amsterdam) was a Dutch field hockey player who competed in the 1928 Summer Olympics and in the 1936 Summer Olympics.

Olympic medal record
Men's field hockey
Silver medal – second place 1928 Amsterdam Team competition
Bronze medal – third place 1936 Berlin Team competition

In 1928 he was a member of the Dutch field hockey team, which won the silver medal. He played all four matches as back.

Eight years later he won the bronze medal with the Dutch team. He played all five matchers as back.

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Olympic Games
Preceded by Flagbearer for   Netherlands
Berlin 1936
Succeeded by