Klementy Sergeevich Sychev is a Russian chess grandmaster.
He earned his GM norms at the:
In July 2023, he tied for first place with five other players in the Russian Championships Higher League, but lost the title to Pavel Ponkratov on tiebreaks.
In the fourth round of the Abu Dhabi Masters in August 2024, he defeated the tournament's top seed Aravindh Chithambaram, who was rated 170 points higher.