Sandra Myrna Díaz (born 27 October 1961) ForMemRS is a professor of ecology at the National University of Córdoba.
She studies the functional traits of plants and investigates how plants impact the ecosystem.Díaz is a senior member of the National Scientific and Technical Research Council and the National Academy of Sciences of Argentina.
She is one of the top 1% most cited scientists in the world.
She was elected a Foreign Member of the Royal Society (ForMemRS) in 2019.