Spanish naming customs

Spanish names are the traditional way of identifying, and the official way of registering, a person in Spain. They are composed of a given name (simple or composite) and two surnames (the first surname of each parent). Traditionally, the first surname is the father's first surname, and the second is the mother's first surname. Since 1999, the order of the surnames in a family in Spain is decided when registering the first child, but the traditional order is nearly universally chosen (99.53% of the time).

The practice is to use one given name and the first surname generally (e.g. "Penélope Cruz" for Penélope Cruz Sánchez); the complete name is reserved for legal, formal and documentary matters. Both surnames are sometimes systematically used when the first surname is very common (e.g., Federico García Lorca, Pablo Ruiz Picasso or José Luis Rodríguez Zapatero) to get a more distinguishable name. In these cases, it is even common to use only the second surname, as in "Lorca", "Picasso" or "Zapatero". This does not affect alphabetization: "Lorca", the Spanish poet, must be alphabetized in an index under "García Lorca", not "Lorca" or "García".