Diego Flores (born 18 December 1982) is an Argentine chess player who received the FIDE title of Grandmaster (GM) in 2008.

[5] In 2010 he won the 2nd Magistral Marcel Duchamp round-robin tournament in Buenos Aires, edging out Sandro Mareco on tiebreak.

[6][7] In the same year Flores was granted the Konex Award Merit Diploma as one of the top five chess players of the decade in Argentina.

[8] In 2011, he tied for 1st–2nd place with Alexandr Fier in the 2nd Latin American Cup in Montevideo, finishing second on tiebreak.

[9] The following year Flores tied for first place in the American Continental Championship, held in Mar del Plata, with Julio Granda Zuñiga, Alexander Shabalov, Gregory Kaidanov and Eric Hansen.