Yağız Kaan Erdoğmuş (born 3 June 2011)[1] is a Turkish chess prodigy and grandmaster.

He also became the youngest player ever to achieve a 2600 FIDE rating in classical chess at just the age of 13 years and 4 months.

[6][7] He attained the IM title during the 3rd FIDE Council in 2022, following a commendable performance at the Svetozar Gligoric Memorial Chess Tournament in Serbia.

[10] Erdoğmuş participated in advanced training and competitions in 2023, including the Chessable FIDE Camp in Spain and the 2023 European Individual Chess Championship in Serbia.

[13] In May 2024, Erdoğmuş broke GM Judit Polgár's 35 year old record as the highest-rated player before the age of 13 by reaching a rating of 2569 [14] (while Polgar remained the highest-ranked 12-year-old at 56th[15]) In July 2024, he won both under 13 and under 16 ChessKid Youth Championship tournaments.