Noah Boy
NOH-uh
“rest, comfort” · Hebrew
#2
Alonzo
BoySpanish, Italian· “noble and ready”
- Meaning
- noble and ready
- Origin
- Spanish, Italian
- Pronunciation
- uh-LAHN-zoh
- Syllables
- 3
- US rank 2025
- #511
- US babies 2025
- 590
- Best rank
- #110 (1880)
- Peak year
- 2022
Meaning and origin of Alonzo
Alonzo is a Spanish and Italian name that is usually said to mean “noble and ready”.
Alonzo is a form of Alfonso, which comes from a Visigothic name built from Germanic elements usually read as noble and ready. Alfonso was the name of many kings of Spain and Portugal, and Alonso was a common Spanish form. The zo spelling became established in English-speaking countries, especially in the United States, where it has been used for generations. Alonzo Mourning, a basketball star, is a well-known bearer. The name has a smooth, rhythmic sound with old-world depth. Lon and Lonnie are possible nicknames.
Popularity over time
Alonzo has been given to babies in the United States since at least 1880, the first year of Social Security records. It has ranked in the top 1,000 in 146 different years. Its best national rank was #110 in 1880, and the most babies received it in 2022, when 651 were named Alonzo. In 2025, 590 babies were named Alonzo, and it ranked #511 nationally. Its use has been fairly steady over the past decade.
Its national rank moved from #332 in 1920, #353 in 1950, #431 in 1980, #516 in 2000, #581 in 2010, and #511 in 2025. Of the 45,955 US boys named Alonzo since records began, 11% were born in the 2010s, its biggest decade. The 1960s come next, with 4,395 babies.
Other boys' names that peaked around the same time include Zaire, Jasiah, Atreus, Camilo, and Asa.
Where it is most popular (2025)
In 2025, Alonzo ranked highest in California, Nevada, and Illinois.
| State | Rank there | Babies |
|---|---|---|
| California | #252 | 149 |
| Nevada | #267 | 11 |
| Illinois | #364 | 29 |
| Wisconsin | #374 | 14 |
| Kansas | #387 | 9 |
Gender, sound and spelling
In the US it is used almost only for boys.
Alonzo is usually pronounced uh-LAHN-zoh, with three syllables. It has six letters, starts with A and ends in “-zo”.
Middle names for Alonzo
A few middle names that flow with Alonzo: each avoids a matching first letter, a rhyme and a vowel clash where the names meet.
Sibling names for Alonzo
Similar names
Lorenzo Boy
luh-REHN-zoh
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vihn-CHEHN-zoh
“conquering” · Italian
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heh-RAHR-doh
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goos-TAH-voh
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Arturo Boy
ahr-TOO-roh
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lee-AN-droh
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Roberto Boy
roh-BEHR-toh
“bright fame” · Spanish
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Armando Boy
ahr-MAHN-doh
“army man” · Spanish
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Alfredo Boy
al-FRAY-doh
“elf counsel” · Italian
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Benito Boy
beh-NEE-toh
“blessed” · Spanish
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Lucio Boy
LOO-see-oh
“light” · Italian
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Lists that include Alonzo
Frequently asked questions
What does the name Alonzo mean?
Alonzo is a Spanish and Italian name that is usually said to mean “noble and ready”.
What is the origin of the name Alonzo?
Alonzo has Spanish, Italian, and Germanic roots. Alonzo is a form of Alfonso, which comes from a Visigothic name built from Germanic elements usually read as noble and ready.
Is Alonzo a popular name?
Yes. Alonzo ranked #511 in the US in 2025, which makes it in the top 1,000.
Is Alonzo a boy or girl name?
Alonzo is mainly a boy's name. In the US it is used almost only for boys.
How do you pronounce Alonzo?
Alonzo is usually pronounced uh-LAHN-zoh. Stressed syllables are in capital letters.
Popularity figures come from US Social Security card applications (names given to at least five babies in a year, 1880 to 2025). How we source names and meanings