Karel van der Weide is a Dutch chess grandmaster and author.

In September 2006, he tied for 2nd–9th with Luke McShane, Stephen J. Gordon, Gawain Jones, Luis Galego, Daniel Gormally, Klaus Bischoff and Šarūnas Šulskis in the 2nd EU Individual Open Chess Championship in Liverpool.

[1] In January 2007, he won the 32nd Ciudad de Sevilla on tiebreaks over Daniel Cámpora.

[2] In June 2022, he held a simultaneous exhibition against 25 players at the Chess Club Vredeburg.

[3] He has written a number of chess books, including Een schaakleven in 100 partijen[4] and Schaken voor huisvrouwen.