Bogdan-Daniel Deac (born 8 October 2001) is a Romanian chess grandmaster.

A chess prodigy, he earned his grandmaster title at the age of 14 years, 7 months and 27 days.

[1] Deac crossed the 2700 barrier for the first time in September 2022, when he reached his peak FIDE rating of 2710, placing him at World No.

[update][5] In March 2018, he competed in the European Individual Chess Championship.

[9] This biographical article relating to a Romanian chess figure is a stub.