Deysi Estela Cori Tello (born 2 July 1993) is a Peruvian chess player, who holds the titles of International Master (IM) and Woman Grandmaster (WGM),[1] and is a three-time American Continental women's champion.

Cori is the top ranked female player of Peru and has played for the national team of her country in the Women's Chess Olympiad since 2004.

[14] Later that month, she won the girls under 16 section of the World Youth Chess Championship in Antalya, Turkey, winning nine of her first ten games, and clinched the title with a round to spare.

[22] In December 2014, she finished tied for second (third on countback) in the 5th Latin American Cup scoring 7/9, a point behind the winner, Cuban grandmaster Lázaro Bruzón.

[24] In February 2016, Cori won for the second time the American Continental Women's Championship, which was held in her hometown, Lima.