Saenz
A Spanish surname meaning “son of Sancho,” originally a patronymic name.
The #1,029 most common surname in the United States (2010 Census) — about 1 in every 9,138 Americans shares it.
Etymology
Saenz is a Spanish surname built from the old personal name Sancho, with the patronymic ending -ez meaning “son of.” In that sense, it means “son of Sancho.” The form likely reflects regional spelling and pronunciation habits in Spain, especially in areas with Basque influence, where the surname is also common.
History
The name developed as a hereditary surname in Spain and later spread widely through Spanish-speaking parts of the world. It is especially familiar in Mexico, the American Southwest, and other regions shaped by Spanish settlement and migration. Modern bearers of the name often preserve a spelling without the tilde that appears in the related surname Sáenz.
Origin
Regions
Variant spellings
Fun fact
Saenz and Sáenz are essentially the same surname, but the accent mark is often dropped in everyday use, especially outside Spanish-language contexts.