Avendaño
A Spanish surname most likely tied to a place-name, with the -año element marking an old regional or locational origin.
The #5,695 most common surname in the United States (2010 Census) — about 1 in every 50,730 Americans shares it.
Etymology
Avendaño is a Spanish surname, usually treated as locational: it likely began as a name for someone from a place called Avendaño or a related settlement name. The final -ño points to Spanish naming patterns where surnames often grew from local place-names or estate names. The deeper meaning of the place-name itself is not fully certain in popular reference works, so the surname is best understood as a toponymic label rather than a transparent word meaning.
History
The surname is found in Spain and in Spanish-speaking parts of the Americas, carried there through migration and colonial-era movement. It is especially familiar in Hispanic naming traditions and appears in records with the tilde as Avendaño, though the spelling Avendano is also common where diacritics are omitted. Because it is a place-based surname, independent origins in different localities are possible.
Origin
Regions
Variant spellings
Fun fact
In English-language databases and forms, the tilde is often dropped, so the same family may appear as both Avendaño and Avendano.