Luisa Eugenia Navas Bustamante (27 July 1920 – 18 November 2020) was a Chilean pharmacist and botanist.

That same year she became Assistant Chair of Botany in the School of Chemistry and Pharmacy of the University of Chile.

She studied seaweed, she concurred with his father to the Marine Biology Station at Montemar.

With authorization of the Dean of Pharmacy, she went twice a week National Museum of Natural History of Santiago.

With a scholarship of UNESCO she studied plant ecology in Mexico, in the Polytechnical School with specialists of Montpellier and of the San Luis of Potosí.