María Alejandra (Jana) Rodriguez Hertz Frugoni (born 1970) is an Argentine and Uruguayan mathematician, professor, and researcher.

[1] Formerly a professor at the Faculty of Engineering at the University of the Republic,[3] she became the first and only woman with a Grade 5 in mathematics in Uruguay.

[1] In 2016, Rodriguez Hertz was elected a Regional Vice President, Latin America & the Caribbean, of the Organization for Women in Science for the Developing World for the period of 2016–20.

[5] Rodriguez Hertz works on dynamical systems and ergodic theory.

[6][7] She has been a columnist in different media, highlighting her participation in 2014 in the "La Tertulia" episode of the program En Perspectiva by Emiliano Cotelo on Radio El Espectador, as well as the "Jana y sus hermanas" and the "Suena Tremendo" episodes on the same radio station.