Cecilia Caballero Blanco (30 September 1913  – 13 August 2019) was the wife of the 24th President of Colombia, Alfonso López Michelsen, and served as First Lady of Colombia from 1974 to 1978.

[2] Cecilia was born on 30 September 1913 in Bogotá to Julio Caballero Barrera and Mary Blanco Barroso.

[2] She married Alfonso López Michelsen, lawyer and politician on 23 October 1938.

They had three sons: Alfonso, an economist and diplomat, Juan Manuel, and Felipe.

She turned 100 in September 2013,[3] and died on 13 August 2019 at the age of 105.