Vallejos
A Spanish surname likely referring to people who came from a small valley or low-lying place.
The #9,338 most common surname in the United States (2010 Census) — about 1 in every 88,542 Americans shares it.
Etymology
Vallejos is a Spanish surname built on valle, meaning “valley,” with the diminutive/plural form vallejos often understood as “little valleys” or “small valleys.” As a surname, it most likely began as a locational name for someone who lived near a valley, in a valley settlement, or came from a place called Vallejo/Vallejos. The form is especially common in Spanish-speaking regions, where surnames often arose from landscape features or local place-names.
History
The surname is found in Spain and across Latin America, where Spanish colonial migration helped spread many place-based surnames. In the Americas it may also reflect connection to toponyms such as Vallejo or Vallejos, which can produce several closely related surname forms. Because spelling often varied before modern standardization, Vallejos and Vallejo can appear as related but distinct family names in different records.
Origin
Regions
Variant spellings
Fun fact
Spanish surnames based on landscape features are very common, and valley names like Vallejo/Vallejos can point to a family’s original home terrain as much as to a formal village name.