Marcos Guillermo Díaz (born 5 February 1986) is an Argentine professional footballer who plays as a goalkeeper for Portuguese club Santa Clara.
[1][3] In July 2012, Díaz departed on loan to sign for Primera B Nacional side Gimnasia y Esgrima.
[1] Ahead of 2013–14, Díaz joined fellow Primera B Nacional team Huracán on loan.
[1] In 2015, Díaz played forty-three matches, with sixteen coming in continental competition including ten in the 2015 Copa Sudamericana where Huracán reached the final but lost on penalties to Santa Fe.
[8] In January 2023, Díaz signed a contract with Santa Clara in Portugal until June 2024.