|Born||19 April 1979|
|Women's World Champion||2004–2006|
|FIDE rating||2435 (March 2023)|
|Peak rating||2560 (January 2003)|
|Peak ranking||No. 2 woman (January 2003)|
Antoaneta Stefanova (Bulgarian: Антоанета Стефанова; born 19 April 1979) is a Bulgarian chess grandmaster and Women's World Champion from 2004 to 2006. She has been a representative for Bulgaria in the Chess Olympiad in 2000 and the Women's Chess Olympiad since 1992.