Reynoso
A Spanish surname most often understood as a form related to a rainy place name or a place-name style nickname.
The #1,554 most common surname in the United States (2010 Census) — about 1 in every 13,341 Americans shares it.
Etymology
Reynoso is a Spanish surname, most likely built from a place-name or descriptive base associated with "rainy" land. It is commonly explained as deriving from the Spanish word for rain, "reino" is not a fit here; the more plausible link is to a toponymic or adjectival formation from "rayo"/"reina" is not secure, so the exact root is uncertain. In practice, surnames of this shape often arose as habitational names for people from a place called Reynoso or from a locality described by a similar-sounding word.
History
The surname is found in the Spanish-speaking world and is especially visible in Latin America, where many Spanish surnames spread through colonial-era migration. In modern usage it often appears alongside related forms such as Reynosa and other surnames with the same Spanish phonetic pattern. Because the name may have several local origins, different family lines may not share a single ancestor.
Origin
Regions
Variant spellings
Fun fact
Spanish surnames with the ending -oso often began as descriptive or place-based forms and later became fixed family names.