Jonathan Westerberg is a Swedish chess grandmaster. He was born on July 17, 1992, and was awarded the International Master title in 2013, and the Grandmaster title in 2015 by the Fédération Internationale des Échecs. In his early career, Westerberg won multiple national youth championships and received several national and international awards.
In 2010, he placed first in the Hasselbacken Open. His other significant performances include reaching third place in the Swedish Championship in 2014, becoming the Nordic Champion in 2015, and qualifying for the Chess World Cup in 2017, where he was eliminated in the first round by the defending champion.
Jonathan Westerberg is a member of the Swedish national chess team. He played for Sweden in the Chess Olympiads in 2014, 2016, 2018 and 2020, as well as the European Team Chess Championships in 2015, 2017 and 2019.