Borislav Krastev Ivanov (Bulgarian: Борислав Кръстев Иванов; born 21 December 1987) is a Bulgarian chess player. During 2012 and 2013 his results improved significantly, and he beat several grandmasters. This led to cheating accusations against him, and he was subsequently banned by the Bulgarian Chess Federation in December 2013, and stripped of his FIDE Master title and excluded from FIDE's rating list in January 2014.