Diego Surname Guide
Diego is easy to measure, thanks to official name counts. Wikidata records Diego as a Spanish family name.
Diego coat of arms
A coat of arms was granted to a particular family line, not to everyone named Diego, so a shared surname is a clue rather than a claim to the arms.
Researching the origin
Where a surname's origin is uncertain, as with Diego, the best clues come from your own ancestors' parish and civil records.
The Census Bureau's 2010 surname file lists Diego with 6,141 bearers, at rank 5,651. Of these, 79% identified as Hispanic or Latino. French birth records list 389 children named Diego between 1891 and 2000. Births under the name grew in the later decades. Want more than a summary? See the Diego family name pack.