Frausto
A likely Spanish-language surname with multiple possible roots, most often treated as a regional or patronymic-style family name.
The #4,702 most common surname in the United States (2010 Census) — about 1 in every 40,910 Americans shares it.
Etymology
Frausto is a surname of Spanish-language usage, but its precise origin is not securely established from the standard reference works available here. It may reflect a regional Spanish form, a nickname, or a name influenced by older Iberian personal-name traditions. Because the surviving evidence is thin and the spelling is not straightforward, the safest reading is that it is a Hispanic surname of uncertain exact derivation.
History
The surname is found especially in the Spanish-speaking world and in Hispanic communities in the Americas, including the United States. Its modern distribution suggests long-standing use in Iberian or colonial-era naming traditions, but there is not enough evidence here to tie it confidently to one specific original place or meaning. In genealogical records, spellings may vary, so related forms should be checked in local documents and parish registers.
Origin
Regions
Variant spellings
Fun fact
Because the name is relatively uncommon, small family lines can make a big difference in how it appears in local records and censuses.