Yelena Dembo (born December 8, 1983) is a Greek chess player, who holds the titles of International Master and Woman Grandmaster.

Dembo's father is a professional pianist, who graduated from Leningrad Academy of Music, but is also a chess trainer, journalist and psychologist.

At seven years of age, her family emigrated to Israel and the young Dembo was Israeli girls' champion five times, including once in the 'Under 20' category.

At the 2008 EU Individual Open Chess Championship held in Liverpool, she shared the prize for 'highest placed woman' with Jovanka Houska and Ketevan Arakhamia-Grant.

Dembo has participated in men's and women's leagues in the following countries: Israel, Croatia, Hungary, Germany, UK, Yugoslavia, Greece and Turkey.