Alonzo

A boys’ name of Spanish origin, meaning noble and ready; from Alfonso.

Babies a year
543
the US, 2017
Rarity
Uncommon
among names in use
US popularity
#511
up from #512
UK popularity
#1705
15 babies

How Alonzo has moved

US popularity rank, 20152025. Lower is more popular.
#422#518#613201520202025#511

View as table
YearUS rank
2015#528
2016#566
2017#522
2018#474
2019#469
2020#475
2021#515
2022#470
2023#537
2024#512
2025#511

In 2025, 15 babies in England and Wales were named Alonzo. In the US, 543 were, though that figure is from 2017 — the most recent full year we hold.

Looking further back: between 1880 and 2008, Alonzo was most common in 1880, when it went to 0.10% of American babies of that sex. Squarely vintage-revival territory.

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