Sandra Díaz may refer to:
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Sandra Díaz (actress) (born c. 1991), Venezuelan actress and model
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Sandra Díaz (ecologist)
Sandra Myrna Díaz ''ForMemRS'' (born in 1961) is an Argentine ecologist and professor of ecology at the National University of Córdoba, who has been awarded with the Linnean Medal for her scientific work. She studies the functional traits of ...
(born 1961), Argentine ecologist
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Sandra Diaz-Twine
Sandra Diaz-Twine (born July 30, 1974) is an Americans, American television personality who became known for her appearances on the reality game show ''Survivor (American TV series), Survivor''. She won the first two seasons she appeared on, '' ...
(born 1974), American television personality
{{human name disambiguation, name=Diaz, Sandra