IMax Warmerdam (born 30 March 2000) is a Dutch chess player. He qualified for the title of grandmaster in 2021.
Warmerdam earned his FIDE master title in 2015, followed by the international master title in 2018. After qualifying through the "top nine-round event" at the 2019 Tata Steel Chess Tournament, Warmerdam was invited to compete at the Tata Steel Challengers in 2020. He placed 12th with 4½/13 (+2–6=5).[ During the tournament, he defeated the eventual winner David Antón Guijarro with the black pieces. As of 2020, Warmerdam is coached by Loek van Wely.
From 3 to 7 January 2021, Warmerdam participated in the Vergani Cup. He scored 7/9 to take first place, half-a-point clear of the rest of the field. In this process, he earned his third grandmaster norm. Later in January, he acted as second to Jorden van Foreest in the 83rd Tata Steel Masters. Van Foreest won the tournament and Warmerdam received praise for his work as second.
