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Alfonzo

Boys’ name Recorded 1889-2025

Alfonzo was given to 27 boys in 2025, #3,952 among boys’ names; 5,783 Americans have been recorded with it since 1889 (Social Security Administration, published May 2026).

An estimated 3,980 Americans named Alfonzo and born in the U.S. are alive in 2026 (69% of everyone recorded); the median is 46 years old and half are between 30 and 61.

Babies named Alfonzo each year, first recorded in 1889
Alfonzo, 1880-2025; highest in 1970.20406080100188019001920194019601980200020251970 peak: 90
Alfonzo, 1880-2025; highest in 1970.20406080100188019001920194019601980200020251970 peak: 90
Alfonzo, 1880-2025; highest in 1970.2040608010018801905193019551980200520251970 peak: 90
Alfonzo, 1880-2025; highest in 1970.2040608010018801930198020251970 peak: 90

Girls and boys together; gaps are years SSA did not record (fewer than 5 births).

Births of Alfonzo by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

What does Alfonzo mean?

Wiktionary, English section

Alfonzo is “a male given name from Spanish [in turn from the Germanic languages], variant of Alfonso.”

Variant of Alfonso.

From Wiktionary, the free dictionary, entry Alfonzo (English), CC BY‑SA 4.0. Quoted from the entry; text after a cross-reference to another sense is left out.

Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).

How popular is Alfonzo?

#3,952 among boys’ names, 2025

Alfonzo fell from #3,513 in 2015 to #3,952 in 2025 among boys’ names; its share of boys born fell from 16.2 to 15.8 per million.

90 babies in 1970, the peak

Alfonzo peaked in 1970, when 90 boys were given it, #848 among boys’ names. The 27 births of 2025 are 30% of that peak.

Alfonzo by year
YearBirthsRankPer million boys
202527#3,95215.8
202423#4,43613.3
202319#5,07511.1
202222#4,57112.6
202127#3,91215.4
202022#4,42712.7
201930#3,64016.7
201816#5,5558.8
201725#4,10513.5
201632#3,44416.9
Every recorded year (128)
YearBirthsRankPer million boys
201531#3,51316.2
201429#3,61915.1
201326#3,86313.7
201233#3,29717.4
201131#3,43516.3
201027#3,81314.1
200941#2,89820.7
200834#3,28616.7
200738#3,02518.3
200644#2,65921.4
200538#2,79919.0
200433#3,01516.6
200333#2,92116.7
200248#2,19224.7
200142#2,34521.6
200045#2,19222.9
199950#1,93026.0
199842#2,15422.0
199753#1,78728.1
199659#1,63631.1
199544#1,90923.1
199460#1,53931.1
199363#1,46732.1
199268#1,36634.0
199178#1,25838.6
199069#1,33133.6
198979#1,20239.5
198869#1,22136.0
198770#1,13937.5
198665#1,17335.3
198564#1,16934.6
198455#1,23930.5
198378#1,00043.5
198258#1,21732.0
198171#1,07739.6
198060#1,17633.6
197970#1,05640.7
197881#96149.3
197785#92251.7
197686#89254.8
197584#90053.8
197472#96145.8
197369#97144.3
197281#88950.0
197184#88647.5
197090#84848.4
196968#92038.0
196864#89836.8
196770#85640.1
196669#87538.7
196566#91235.5
196471#90135.6
196361#96030.0
196264#94630.9
196173#89534.4
196063#95029.5
195973#89634.2
195852#1,05924.5
195783#83038.5
195665#92330.7
195583#80040.3
195472#86235.3
195382#78541.6
195264#87732.9
195163#88033.5
195064#84935.7
194960#88433.8
194862#86735.3
194763#87734.4
194647#98028.9
194537#1,05627.5
194440#1,03929.3
194345#99831.5
194236#1,13926.1
194150#89840.7
194033#1,15828.5
193942#97737.9
193822#1,43919.8
193739#1,01736.6
193635#1,09633.7
193531#1,19429.8
193442#98340.7
193330#1,20330.3
193260#82157.5
193136#1,12834.6
193045#1,02141.0
192946#99542.8
192835#1,21231.6
192740#1,12835.5
192646#1,01841.4
192546#1,01241.2
192432#1,28828.3
192325#1,50322.8
192230#1,33327.6
192137#1,17833.6
192031#1,30029.1
191935#1,18835.7
191827#1,37226.6
191731#1,22233.5
191638#1,04542.7
191524#1,37328.3
191420#1,34230.5
191312#1,58123.4
191215#1,22534.9
19117#1,38831.0
191012#92861.8
190916#68097.6
19086#1,21938.9
19077#1,09547.7
19066#1,11445.1
19058#92060.5
19049#81170.2
190310#73483.9
19027#93257.1
19015#1,06047.0
19009#90159.8
18985#1,12440.8
18898#72472.3

Download Alfonzo’s births by year (CSV)

Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.

Is Alfonzo a boy’s or a girl’s name?

Alfonzo has been recorded only for boys: SSA lists no girls with the name in 128 years of records (it lists a name only in years with 5 or more babies of a sex).

Girls and boys named Alfonzo: the SSA national file counts each sex separately.

How many people are named Alfonzo, and how old are they?

3,980 alive in 2026, estimated

That is 69% of the 5,783 Americans ever recorded as Alfonzo. The median Alfonzo alive today is 46 years old; half are between 30 and 61.

The 2020 Census counted 4,109 people named Alfonzo (13 women and girls, 4,096 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 4,133 born in the U.S. The Census count is 1% below that prediction.

Alive today, by age

100-1091
90-9926
80-89131
70-79411
60-69518
50-59676
40-49 (median)638
30-39631
20-29419
10-19319
0-9210

Alive today, by generation

By generation
GenerationBornAlive
Silent Generation1928-1945135
Baby Boomers1946-1964841
Generation X1965-19801,060
Millennials1981-1996997
Generation Z1997-2012621
Generation Alpha2013-2025327

An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.

Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).

Where are babies named Alfonzo born?

The states with the most babies named Alfonzo are California, Texas and Illinois, with 49% of its births recorded by state since 1910.

States with the most births: girls and boys together; rank among boys’ names in the state in 2025
StateSince 1910Rank, boysvs. national
California475#1,8350.9×
Texas318not ranked0.8×
Illinois224not ranked0.8×
Georgia195not ranked1.2×
North Carolina191not ranked1.1×
Alabama112not ranked1.0×
New York94not ranked0.2×
South Carolina90not ranked1.0×
Florida84not ranked0.5×
Tennessee69not ranked0.5×

Where Alfonzo is more common than its national share predicts

Relative to its national share, Alfonzo is most over-represented in Georgia: since 1910 it was given 1.2 times as often there as its national share each year would predict.

Georgia1.21×

Bars start at 1× (as often as the national share predicts).

States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Alfonzo with the births its national share predicts year by year, for states with at least 100 births of the name.

Names spelled alike

Of these 4 names spelled alike, given to 9,713 babies since 1880, Alfonzo is the most given (60% of them). In 2025 it was given to 27 of their 27 babies (100%), again the most given.

Alfonzo and the names spelled alike
NameSince 1880Births 2025Peak year
Alfonzo5,783271970
Alphonzo2,030under 51963
Alfonza1,714under 51957
Alfonzia186under 51951

Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.

Names that rose and fell in the same decades as Alfonzo

Names whose births rose and fell across the same decades, measured on each decade’s share of births.

NameRecorded1880-2025
Curry1,655
Prentiss2,789
Alfonso41,579
Shelton12,145
Prentice3,992

Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

More about Alfonzo and names like it

  1. Compare Alfonzo and AlphonzoBirths, ranks, peak and the living estimate side by side.
  2. The most given names of the 1970sAlfonzo peaked in 1970.
  3. California’s most given namesThe state where SSA recorded the most babies named Alfonzo since 1910.
  4. Germanic namesWiktionary’s origin for Alfonzo: every such name, by how often it is given.
  5. The top names of 1970The year the most babies were named Alfonzo.
  6. The names of Generation XMost people named Alfonzo alive today were born 1965-1980.
  7. Names starting with AMost given first.

Compare Alfonzo with another name