Spelling Variants
Alonso vs Alonzo: Which Spelling?
Alonso and Alonzo are both derived from the Germanic name Alphonsus, differing only in spelling.
Global Rank #72
Alonso
Origin: Spanish
Alonso derives from the Germanic name Alphonsus, which combines "adal" (noble) and "funs" (ready/prepared), meaning "noble and ready" or "eager nobleman." The name became prominent in medieval Spain through Visigothic…
Global Rank #511
Alonzo
Origin: English (American)
The name 'Alonzo' means "noble and ready" or "eager for battle," deriving from the Old High German name *Adalfuns* via the Spanish and Italian form *Alfonso*.
Which is more popular? Based on real registry rankings, Alonso currently ranks higher globally. Popularity can vary a lot by country — check each name's own page for a full regional breakdown.