Herman Claudius van Riemsdijk (born 26 August 1948) is a Brazilian chess player.

Born in Tiel, the Netherlands, van Riemsdijk arrived in Brazil on 16 June 1958.

He has also been a second to Brazilian junior players, and has played as widely as New Zealand (where a brother lives) and Australia.

In 2018 van Riemsdijk was awarded the title of FIDE Trainer and he was appointed captain/coach of the New Zealand women's team for the 43rd Chess Olympiad in Batumi, Georgia.

[3] This biographical article relating to a Brazilian chess figure is a stub.