Aleksandr Borisovich Lebziak (Russian: ????????? ????????? ??????, born 15 April 1969) is a Russian boxer, who won the Gold medal in the men's Light Heavyweight (81 kg) category at the 2000 Summer Olympics in Sydney.
He beat Rudolf Kraj in the final.
Lebziak also won the World Amateur Boxing Championships in 1997.
At the 1991 World Amateur Championships he won a silver medal in the Middleweight (75 kg) category.
He also triumphe at the 2000 European Amateur Boxing Championships in Tampere, Finland.