Cognomen Londoño Castrillon (Londoño Castrillon 
) , all around the world, is a very rare last name. The surname Londoño Castrillon is habitual in Colombia, where it is a very rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Londoño Castrillon | Spain, Colombia |
Juan, Diego, Oscar, Brayan, Hector, Marisol, Harrison, Juan Estevan, Carlos Arturo, Luis Fernando, and Helen Mariana