Alfonso
Alfonso was given to 223 boys in 2025, #1,012 among boys’ names; 41,579 Americans have been recorded with it since 1881 (Social Security Administration, published May 2026).
An estimated 28,800 Americans named Alfonso and born in the U.S. are alive in 2026 (69% of everyone recorded); the median is 38 years old and half are between 24 and 57.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Alfonso by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Alfonso mean?
Wiktionary, English section
Alfonso is “a male given name from the Germanic languages.”
From Spanish Alfonso and Italian Alfonso. Doublet of Alphonse.
/ælˈfɑnzoʊ/
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Alfonso?
#1,012 among boys’ names, 2025
Alfonso fell from #796 in 2015 to #1,012 in 2025 among boys’ names; its share of boys born fell from 0.15 to 0.13 per 1,000.
580 babies in 1991, the peak
Alfonso peaked in 1991, when 580 babies were given it (574 boys, #395 among boys’ names). The 223 births of 2025 are 38% of that peak.
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2025 | 223 | #1,012 | 0.13 |
| 2024 | 251 | #922 | 0.15 |
| 2023 | 224 | #977 | 0.13 |
| 2022 | 252 | #920 | 0.14 |
| 2021 | 265 | #871 | 0.15 |
| 2020 | 209 | #1,007 | 0.12 |
| 2019 | 229 | #942 | 0.13 |
| 2018 | 235 | #915 | 0.13 |
| 2017 | 279 | #811 | 0.15 |
| 2016 | 229 | #927 | 0.12 |
Every recorded year (142)
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2015 | 293 | #796 | 0.15 |
| 2014 | 263 | #849 | 0.14 |
| 2013 | 286 | #787 | 0.15 |
| 2012 | 283 | #798 | 0.15 |
| 2011 | 279 | #795 | 0.15 |
| 2010 | 304 | #746 | 0.16 |
| 2009 | 382 | #649 | 0.19 |
| 2008 | 430 | #588 | 0.21 |
| 2007 | 499 | #521 | 0.24 |
| 2006 | 457 | #550 | 0.22 |
| 2005 | 455 | #534 | 0.23 |
| 2004 | 458 | #523 | 0.23 |
| 2003 | 455 | #521 | 0.23 |
| 2002 | 468 | #493 | 0.24 |
| 2001 | 428 | #521 | 0.22 |
| 2000 | 476 | #491 | 0.24 |
| 1999 | 490 | #464 | 0.26 |
| 1998 | 485 | #464 | 0.25 |
| 1997 | 506 | #441 | 0.27 |
| 1996 | 508 | #440 | 0.27 |
| 1995 | 495 | #454 | 0.26 |
| 1994 | 530 | #430 | 0.27 |
| 1993 | 544 | #421 | 0.28 |
| 1992 | 532 | #418 | 0.27 |
| 1991 | 574 | #395 | 0.28 |
| 1990 | 537 | #421 | 0.26 |
| 1989 | 496 | #419 | 0.25 |
| 1988 | 502 | #394 | 0.26 |
| 1987 | 437 | #417 | 0.23 |
| 1986 | 488 | #378 | 0.26 |
| 1985 | 458 | #395 | 0.25 |
| 1984 | 399 | #413 | 0.22 |
| 1983 | 420 | #395 | 0.23 |
| 1982 | 429 | #392 | 0.24 |
| 1981 | 460 | #375 | 0.26 |
| 1980 | 448 | #381 | 0.25 |
| 1979 | 441 | #385 | 0.26 |
| 1978 | 415 | #380 | 0.25 |
| 1977 | 412 | #388 | 0.25 |
| 1976 | 382 | #395 | 0.24 |
| 1975 | 433 | #374 | 0.28 |
| 1974 | 396 | #389 | 0.25 |
| 1973 | 427 | #369 | 0.27 |
| 1972 | 385 | #399 | 0.24 |
| 1971 | 416 | #395 | 0.24 |
| 1970 | 408 | #396 | 0.22 |
| 1969 | 363 | #416 | 0.20 |
| 1968 | 358 | #408 | 0.21 |
| 1967 | 381 | #385 | 0.22 |
| 1966 | 366 | #391 | 0.21 |
| 1965 | 384 | #401 | 0.21 |
| 1964 | 389 | #407 | 0.20 |
| 1963 | 399 | #403 | 0.20 |
| 1962 | 353 | #426 | 0.17 |
| 1961 | 399 | #397 | 0.19 |
| 1960 | 383 | #406 | 0.18 |
| 1959 | 392 | #401 | 0.18 |
| 1958 | 385 | #397 | 0.18 |
| 1957 | 415 | #379 | 0.19 |
| 1956 | 373 | #387 | 0.18 |
| 1955 | 387 | #367 | 0.19 |
| 1954 | 412 | #352 | 0.20 |
| 1953 | 393 | #348 | 0.20 |
| 1952 | 352 | #361 | 0.18 |
| 1951 | 354 | #365 | 0.19 |
| 1950 | 356 | #357 | 0.20 |
| 1949 | 352 | #358 | 0.20 |
| 1948 | 380 | #345 | 0.22 |
| 1947 | 354 | #365 | 0.19 |
| 1946 | 299 | #377 | 0.18 |
| 1945 | 261 | #373 | 0.19 |
| 1944 | 274 | #364 | 0.20 |
| 1943 | 269 | #373 | 0.19 |
| 1942 | 264 | #374 | 0.19 |
| 1941 | 262 | #361 | 0.21 |
| 1940 | 272 | #345 | 0.23 |
| 1939 | 282 | #329 | 0.25 |
| 1938 | 291 | #325 | 0.26 |
| 1937 | 270 | #331 | 0.25 |
| 1936 | 287 | #318 | 0.28 |
| 1935 | 265 | #336 | 0.25 |
| 1934 | 271 | #329 | 0.26 |
| 1933 | 277 | #323 | 0.28 |
| 1932 | 323 | #307 | 0.31 |
| 1931 | 347 | #298 | 0.33 |
| 1930 | 373 | #295 | 0.34 |
| 1929 | 356 | #294 | 0.33 |
| 1928 | 335 | #303 | 0.30 |
| 1927 | 340 | #311 | 0.30 |
| 1926 | 326 | #313 | 0.29 |
| 1925 | 331 | #313 | 0.30 |
| 1924 | 353 | #305 | 0.31 |
| 1923 | 343 | #306 | 0.31 |
| 1922 | 305 | #334 | 0.28 |
| 1921 | 321 | #329 | 0.29 |
| 1920 | 284 | #349 | 0.27 |
| 1919 | 220 | #394 | 0.22 |
| 1918 | 237 | #390 | 0.23 |
| 1917 | 228 | #372 | 0.25 |
| 1916 | 212 | #378 | 0.24 |
| 1915 | 184 | #396 | 0.22 |
| 1914 | 152 | #384 | 0.23 |
| 1913 | 156 | #325 | 0.30 |
| 1912 | 131 | #329 | 0.30 |
| 1911 | 69 | #328 | 0.31 |
| 1910 | 60 | #318 | 0.31 |
| 1909 | 57 | #302 | 0.35 |
| 1908 | 39 | #365 | 0.25 |
| 1907 | 42 | #328 | 0.29 |
| 1906 | 30 | #394 | 0.23 |
| 1905 | 36 | #337 | 0.27 |
| 1904 | 31 | #360 | 0.24 |
| 1903 | 22 | #430 | 0.18 |
| 1902 | 23 | #426 | 0.19 |
| 1901 | 23 | #394 | 0.22 |
| 1900 | 35 | #375 | 0.23 |
| 1899 | 11 | #614 | 0.10 |
| 1898 | 19 | #473 | 0.15 |
| 1897 | 14 | #556 | 0.12 |
| 1896 | 14 | #552 | 0.12 |
| 1895 | 10 | #685 | 0.09 |
| 1894 | 7 | #857 | 0.06 |
| 1893 | 8 | #768 | 0.07 |
| 1892 | 10 | #688 | 0.08 |
| 1891 | 10 | #600 | 0.10 |
| 1890 | 5 | #998 | 0.05 |
| 1889 | 7 | #793 | 0.06 |
| 1888 | 7 | #815 | 0.06 |
| 1886 | 8 | #697 | 0.07 |
| 1883 | 9 | #644 | 0.09 |
| 1882 | 6 | #841 | 0.05 |
| 1881 | 6 | #782 | 0.06 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Alfonso a boy’s or a girl’s name?
Alfonso has been given almost only to boys: 115 girls in 142 years of records.
Girls and boys named Alfonso: the SSA national file counts each sex separately.
How many people are named Alfonso, and how old are they?
28,800 alive in 2026, estimated
That is 69% of the 41,579 Americans ever recorded as Alfonso. The median Alfonso alive today is 38 years old; half are between 24 and 57.
The 2020 Census counted 49,412 people named Alfonso (108 women and girls, 49,304 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 29,335 born in the U.S. The Census count is 1.7 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 957 |
| Baby Boomers | 1946-1964 | 4,760 |
| Generation X | 1965-1980 | 5,710 |
| Millennials | 1981-1996 | 7,450 |
| Generation Z | 1997-2012 | 6,740 |
| Generation Alpha | 2013-2025 | 3,210 |
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 Alfonso born?
The states with the most babies named Alfonso are Texas, California and Florida, with 77% of its births recorded by state in 2025.
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| Texas | 62 | #526 | 3.0× |
| California | 54 | #558 | 2.9× |
| Florida | 13 | #1,010 | 1.2× |
| Illinois | 10 | #806 | 0.8× |
| Arizona | 8 | #722 | 2.9× |
| New York | 6 | #1,584 | 1.0× |
| Colorado | 5 | #854 | 1.4× |
| Georgia | 5 | #1,355 | 0.6× |
| Michigan | 5 | #1,115 | 0.3× |
Where Alfonso is more common than its national share predicts
Relative to its national share, Alfonso is most over-represented in New Mexico: since 1910 it was given 4.9 times as often there as its national share each year would predict.
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 Alfonso 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 58,340 babies since 1880, Alfonso is the most given (71% of them). In 2025 it was given to 223 of their 244 babies (91%), again the most given.
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 Alfonso
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
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 Alfonso and names like it
- Compare Alfonso and AlphonsoBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1990sAlfonso peaked in 1991.
- California’s most given namesThe state where SSA recorded the most babies named Alfonso since 1910.
- Germanic namesWiktionary’s origin for Alfonso: every such name, by how often it is given.
- The top names of 1991The year the most babies were named Alfonso.
- The names of the MillennialsMost people named Alfonso alive today were born 1981-1996.
- Names starting with AMost given first.