Bucio
A likely Hispanic surname, probably linked to a personal name or local family-name formation rather than an English occupational meaning.
The #8,822 most common surname in the United States (2010 Census) — about 1 in every 83,175 Americans shares it.
Etymology
Bucio is most plausibly a Spanish surname, though its exact origin is not securely established from standard onomastic patterns alone. It may be related to a regional or nickname-based formation, possibly from a personal name, place name, or an old Spanish word now obscure or dialectal. Because there is no single well-attested explanation, the safest reading is that it is a Hispanic surname of uncertain etymology.
History
The surname is found in Spanish-speaking communities and is especially likely to be encountered in the Americas through migration from the Spanish-speaking world. In modern records it appears to be relatively uncommon, which can make its deeper historical trail difficult to trace with confidence. Without a firm dictionary entry, it is best treated as a surname of Hispanic distribution with an unresolved origin story.
Origin
Regions
Variant spellings
Fun fact
Because Bucio is uncommon, small spelling differences in records can matter a lot when tracing family lines.