María del Rosario Piedra Ibarra (born 14 July 1951[1]) is a Mexican psychologist, activist, and bureaucrat.

Since 16 November 2019, she is the president of Mexico's National Human Rights Commission.

She graduated with a bachelor's degree in psychology from the Autonomous University of Nuevo León in 1985.

[1] In 2018, she was the congressional candidate of the National Regeneration Movement (Morena) for the tenth district [es] of Nuevo León, but failed to get elected.

Piedra Ibarra also served as the Secretary of Human Rights within Morena's national executive committee.