Alonzo

“Variant of Alfonso — noble and ready (Germanic adal + funs)” — Germanic, via Spanish Alfonso origin

Boy's name · #511 in the US (2025) · Timeless

Alonzo has appeared in US records since 1880 — best rank #110 (1880) · 45,955 babies named Alonzo all-time · 1 in 2,900 boys born in 2025.

Around the world: about 1 in 7,900 boys in Canada (2024) · about 1 in 12,000 boys in France (2025) · about 1 in 18,000 boys in England & Wales (2025).

Appears in 2020-2025 birth records of 34 states. See the full state-by-state map on this page.

Famous Alonzos

Alonzo Church — American mathematician and logician (1903–1995)
Alonzo Mourning — American basketball player
Alonzo Babers — American athletics competitor
Alonzo Russell — Bahamian sprinter
Alonzo Gee — American basketball player

In stories & tradition

Alonzo Harris — Training Day
Alonzo — Old Possum's Book of Practical Cats · Cats
Alonzo Hawk — The Absent-Minded Professor · Son of Flubber

What Alonzos become

Among 271 notable people named Alonzo:

Military figures appear 2.47× more often than among typical names — e.g. Alonzo Garcelon, Union Army general, politician (1813-1906).

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