Carmen de Luna Villajuan (July 16, 1873 – November 4, 1962) was a Filipina educator and co-founded the Centro Escolar University.

In 1907, the two women, along with Fernando Salas founded the Centro Escolar de Señoritas, as a non-sectarian educational facility for girls.

To continue her education, de Luna enrolled in the course offered by the sisters of the Assumption Convent,[1] where she met fellow student Librada Avelino, who would become her collaborator and companion for the rest of her life.

[5] At the end of the Philippine Revolution, the school closed because the new United States authorities changed the educational curricula throughout the country requiring that courses be taught in English.

[25] She worked with numerous civic and charitable organizations including La Gota de Leche and the Abbey of Our Lady of Montserrat, which operated San Beda College; as well as various Catholic charities.

[1][2] Her work among youth was recognized by President Elpidio Quirino in 1949, who bestowed upon her the Presidential Medal of Merit, the year the honor was inaugurated.

[26][27] That same year, she was honored by Pope Pius XII, who awarded her the Pro Ecclesia et Pontifice medal for her leadership and service to the Catholic church.