Surname Rubén Darío (Rubén Darío 
) , all around the world, is an extremely rare last name. The cognomen Rubén Darío is characteristic of Southern Europe, particularly Spain, where it is a very rare surname. Much more prevalently, Rubén Darío is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rubén Darío | Spain, Afghanistan, Bolivia, Dominican Republic, Colombia |
Ruiz, Guzmán, Giraldo, Languba, Fajardo, Sánchez, Petrevcic, Londoño, Jiménez, Tarazona, Valencia, Villamil, Vásquez, Ordóñez, González, Arenas Díaz, Cantarella, Rodríguez, Hernández, Fernández, Arias Arredondo, Ramírez Gómez, García, Colimba, Cortés, Camacho, Luna, Lugo, Díaz, Ortiz, Mendez, Sierra, Arango, Abrigo, Correa, Cuevas, Gallegos Merino, Duarte, López, Vargas, Ocampo, Maidana, Morales, Murillo, Sanchez, Salazar, Acevedo, Cardona, Gómez, and González-Román