Mary Coco Maltez de Callejas (7 March 1925 – 22 February 2016) was a Nicaraguan feminist, teacher and politician of the Somozista Nationalist Liberal Party.

[2] In 1955, along with Clementina Arcia, Gladys Bonilla Muñoz, Amelia Borge de Sotomayor, Esperanza Centeno Sequeira, Zaida Fernandez de Ruiz, Evelina Mayorga, Lucrecia Noguera Carazo, Olga Núñez Abaunza, Ofelia Padilla, and Gloria Zeledón, Maltez de Callejas founded the magazine, Ala Femenina,[5] as the press organ of the organization by the same name.

[9] In 1957, the first year women were allowed to vote in Nicaragua, Maltez de Callejas, Núñez, Mirna Hueck de Matamoros became the first women candidates to run for public office.

[15] Between 1972 and 1974, she was a delegate to the Constituent National Assembly[16] and then served again in the Chamber of Deputies from 1974 to 1979.

[17] When the Sandinista National Liberation Front, overthrew the government of Anastasio Somoza DeBayle, Maltez de Callejas went into exile for a lengthy period of time.