Editing Surnames by country (section)

===Argentina===
In [[Argentina]], normally only one family name, the father's paternal family name, is used and registered, as in English-speaking countries. However, it is possible to use both the paternal and maternal name. For example, if ''Ana Laura Melachenko'' and ''Emanuel Darío Guerrero'' had a daughter named ''Adabel Anahí'', her full name could be ''[[Adabel Guerrero|Adabel Anahí Guerrero Melachenko]]''. Women, however, do not change their family names upon marriage and continue to use their [[Maiden and married names|birth family names]] instead of their husband's family names. However, women have traditionally, and some still choose to use the old Spanish custom of adjoining "''de''" and her husband's surname to her own name. For example, if Paula Segovia marries Felipe Cossia, she might keep her birth name or become ''Paula Segovia de Cossia'' or ''Paula Cossia''.

There are some province offices where a married woman can use only her birth name, and some others where she has to use the complete name, for legal purposes. The Argentine Civilian Code states both uses are correct, but police offices and passports are issued with the complete name. Today most women prefer to maintain their birth name given that "de" can be interpreted as meaning they belong to their husbands.

When Eva Duarte married [[Juan Domingo Perón]], she could be addressed as Eva Duarte de Perón, but the preferred style was [[Eva Perón]], or the familiar and affectionate ''Evita'' (little Eva).

Combined names come from old traditional families and are considered one last name, but are rare. Although Argentina is a [[Spanish language|Spanish]]-speaking country, it is also composed of other [[demographics of Argentina|varied European influences]], such as Italian, French, Russian, German, etc.

Children typically use their fathers' last names only. Some state offices have started to use both last names, in the traditional father then mother order, to reduce the risk of a person being mistaken for others using the same name combinations, e.g. if Eva Duarte and Juan Perón had a child named Juan, he might be misidentified if he were called ''Juan Perón'', but not if he was known as Juan Perón Duarte.

In early 2008,{{update inline|date=April 2020}} some new legislation is under consideration that will place the mother's last name ahead the father's last name, as it is done in [[Married and maiden names#Portuguese-speaking world|Portuguese-speaking]] countries and only optionally in Spain, despite Argentina being a Spanish-speaking country.