Katrin Aladjova-Kusznirczuk (born Katrin Peneva Aladjova, Bulgarian ?????? ?????? ????????, listed with FIDE as Katrin Aladjova, 21 June 1971 in Sofia, Bulgaria) is a Bulgarian-Australian chess Woman FIDE Master (WFM).She was 1986 World Under-16 Girl's Chess Champion and 1989 World Under-18 Girl's Chess Champion.