Justicia Espada Acuña Mena (January 14, 1893 – 1980)[1] was a Chilean civil engineer.

[2] Justicia Acuña Mena was born in Santiago, Chile, on January 14, 1893.

[4] She studied at the Liceo de Aplicación and then at the Instituto Pedagógico.

In 1913, she switched her studies from mathematics to civil engineering,[4][5] and entered the Faculty of Physical and Mathematical Sciences of the University of Chile, being the only woman among all the students of that faculty.

[7][5] During the course of her career at Empresa, she left a few times to raise her seven children, but always returned before retiring in 1954.