Lucila Santos Trujillo (9 July 1928[2] – 4 May 2020)[1] was First Lady of Ecuador to Otto Arosemena from 16 November 1966 to 31 August 1968.

[3] In 1947, she married Otto Arosemena in Guayaquil,[4] and the couple had three children.

[5] In 1955, they acquired a neocolonial property in Guayaquil and named it Villa Lucile.

They sold the property in 1962 and moved to Quito,[4] where Arosemena had been living since 1957 for his political offices.

In addition to the First Lady's traditional role as president of the National Institute for Children and the Family, Santos promoted the "One School a Day" program, which built schools across Ecuador.