Family name Castro Amaya (Castro Amaya 
) , throughout the world, is a very rare surname. The surname Castro Amaya is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, Colombia, and Chile. In absolute terms, the name is most common in Colombia, Ecuador, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Castro Amaya | Chile, United States, Ecuador, Colombia, Spain |