Guillermo

Last seen for girls in 2006 at #17,168 · #901 for boys in 2025, 264 births
Given to boys 99.8% of the time

Showing
Show data for
Peak · boys
1996 · 692 births
Debut · boys
5 births
In top 100 · boys
never
of 146 years
Total births · boys
32,074
since 1885

Guillermo over time

boys

Rank among boys' names. Guillermo has never cracked the top 300 here.

#1#10#100#1,000rank188019001920194019601980200020202001peak #352, 1996boys
Hover or use arrow keys to read values by year; click or press Enter to open that year.

Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.

Show data table
Yeargirlsboys
rankbirthsrankbirths
2025—#901264
2024—#831299
2023—#833294
2022—#848287
2021—#811299
2020—#832275
2019—#747320
2018—#751314
2017—#795289
2016—#754322
2015—#661389
2014—#676376
2013—#688348
2012—#619392
2011—#604408
2010—#553457
2009—#507534
2008—#476583
2007—#454610
2006#17,1685#439621
2005—#434616
2004—#406639
2003—#428595
2002—#404626
2001—#402620
2000—#391651
1999—#387665
1998—#369693
1997—#382632
1996—#352692
1995#11,7836#380623
1994#11,7786#357675
1993#10,5887#360654
1992#10,4797#360659
1991#9,3368#389582
1990—#395587
1989—#404532
1988#11,7985#385511
1987—#451388
1986—#429405
1985#10,6775#409432
1984—#404412
1983—#394423
1982#10,5175#386437
1981#10,4115#392428
1980#10,3925#409395
1979—#400394
1978—#441322
1977—#422351
1976—#410360
1975#9,0675#416349
1974—#418349
1973—#419347
1972—#469281
1971—#460314
1970—#472290
1969—#494244
1968—#449292
1967—#483242
1966#6,5645#550194
1965—#539203
1964—#571192
1963—#567193
1962—#576185
1961—#606171
1960—#565191
1959—#580184
1958—#603162
1957—#611158
1956—#580172
1955—#604150
1954—#605149
1953—#636126
1952—#608134
1951—#610133
1950—#606127
1949—#577137
1948—#572136
1947—#645114
1946—#67193
1945—#62494
1944—#70777
1943—#72479
1942—#91053
1941—#64689
1940—#72671
1939—#76363
1938—#73070
1937—#74267
1936—#66079
1935—#71672
1934—#65086
1933—#69474
1932—#73971
1931—#584100
1930—#610101
1929—#63094
1928—#67687
1927—#629100
1926—#605107
1925—#68288
1924—#70487
1923—#68289
1922—#92457
1921—#1,05844
1920—#81268
1919—#1,03443
1918—#1,19234
1917—#1,03340
1916—#1,59420
1915—#1,12433
1914—#1,12726
1913—#1,31116
1912—#1,09518
1911—#1,11710
1910—#85913
1909—#1,4405
1908—#1,1137
1907—#1,2006
1906——
1905—#78610
1904—#76010
1903——
1902——
1901——
1900—#1,1626
1899——
1898——
1897—#1,0575
1896——
1895——
1894——
1893——
1892—#7928
1891——
1890——
1889——
1888——
1887——
1886——
1885—#9365
1884——
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1880——
First appearance
1885

The first year at least five boys were named Guillermo! It came in at #936, and was given to 5 baby boys.


Quietest stretch: 1885–1891, when fewer than 6 boys a year got the name.

Where Guillermo is popular in 2001

  • Rank in state
  • Top 10
  • 11–50
  • 51–100
  • 101–500
  • 501+
  • Not published
Alaska: fewer than 5 boys named Guillermo, so not publishedAKMaine: fewer than 5 boys named Guillermo, so not publishedMEVermont: fewer than 5 boys named Guillermo, so not publishedVTNew Hampshire: fewer than 5 boys named Guillermo, so not publishedNHWashington: #375 for boys · 14 births · 1 in 2,411 boysWAIdaho: fewer than 5 boys named Guillermo, so not publishedIDMontana: fewer than 5 boys named Guillermo, so not publishedMTNorth Dakota: fewer than 5 boys named Guillermo, so not publishedNDMinnesota: fewer than 5 boys named Guillermo, so not publishedMNIllinois: #381 for boys · 31 births · 1 in 2,588 boysILWisconsin: #590 for boys · 5 births · 1 in 5,789 boysWIMichigan: #862 for boys · 6 births · 1 in 9,739 boysMINew York: #566 for boys · 23 births · 1 in 4,851 boysNYMassachusetts: fewer than 5 boys named Guillermo, so not publishedMARhode Island: fewer than 5 boys named Guillermo, so not publishedRIOregon: #389 for boys · 8 births · 1 in 2,427 boysORNevada: #200 for boys · 15 births · 1 in 825 boysNVWyoming: fewer than 5 boys named Guillermo, so not publishedWYSouth Dakota: fewer than 5 boys named Guillermo, so not publishedSDIowa: fewer than 5 boys named Guillermo, so not publishedIAIndiana: fewer than 5 boys named Guillermo, so not publishedINOhio: #971 for boys · 5 births · 1 in 13,648 boysOHPennsylvania: #932 for boys · 5 births · 1 in 12,836 boysPANew Jersey: #685 for boys · 7 births · 1 in 6,878 boysNJConnecticut: #415 for boys · 5 births · 1 in 3,601 boysCTCalifornia: #227 for boys · 189 births · 1 in 1,295 boysCAUtah: #559 for boys · 5 births · 1 in 4,241 boysUTColorado: #346 for boys · 14 births · 1 in 2,084 boysCONebraska: fewer than 5 boys named Guillermo, so not publishedNEMissouri: fewer than 5 boys named Guillermo, so not publishedMOKentucky: fewer than 5 boys named Guillermo, so not publishedKYWest Virginia: fewer than 5 boys named Guillermo, so not publishedWVVirginia: fewer than 5 boys named Guillermo, so not publishedVAMaryland: fewer than 5 boys named Guillermo, so not publishedMDDelaware: fewer than 5 boys named Guillermo, so not publishedDEArizona: #221 for boys · 37 births · 1 in 1,022 boysAZNew Mexico: fewer than 5 boys named Guillermo, so not publishedNMKansas: fewer than 5 boys named Guillermo, so not publishedKSArkansas: #447 for boys · 5 births · 1 in 2,931 boysARTennessee: fewer than 5 boys named Guillermo, so not publishedTNNorth Carolina: #435 for boys · 16 births · 1 in 3,155 boysNCSouth Carolina: fewer than 5 boys named Guillermo, so not publishedSCDistrict of Columbia: fewer than 5 boys named Guillermo, so not publishedDCOklahoma: fewer than 5 boys named Guillermo, so not publishedOKLouisiana: fewer than 5 boys named Guillermo, so not publishedLAMississippi: fewer than 5 boys named Guillermo, so not publishedMSAlabama: fewer than 5 boys named Guillermo, so not publishedALGeorgia: #521 for boys · 15 births · 1 in 3,706 boysGAHawaii: fewer than 5 boys named Guillermo, so not publishedHITexas: #229 for boys · 149 births · 1 in 1,154 boysTXFlorida: #428 for boys · 31 births · 1 in 2,897 boysFL

Hover or tap a state for its numbers.

Top states · boys
  1. Nevada#200 · 1 in 825
  2. Arizona#221 · 1 in 1,022
  3. California#227 · 1 in 1,295
  4. Texas#229 · 1 in 1,154
  5. Colorado#346 · 1 in 2,084

Best ever in a state: #81 in Arizona, 1915.

Show every state
StateRankBirthsShare
Nevada#200151 in 825
Arizona#221371 in 1,022
California#2271891 in 1,295
Texas#2291491 in 1,154
Colorado#346141 in 2,084
Washington#375141 in 2,411
Illinois#381311 in 2,588
Oregon#38981 in 2,427
Connecticut#41551 in 3,601
Florida#428311 in 2,897
North Carolina#435161 in 3,155
Arkansas#44751 in 2,931
Georgia#521151 in 3,706
Utah#55951 in 4,241
New York#566231 in 4,851
Wisconsin#59051 in 5,789
New Jersey#68571 in 6,878
Michigan#86261 in 9,739
Pennsylvania#93251 in 12,836
Ohio#97151 in 13,648
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Vermont———
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Wyoming———

Ranks are within each state; “1 in N” is out of the boys born there that year. The SSA only publishes a name in a state when 5 or more babies of one sex got it.

See more about Guillermo
Momentum · boys
Holding steady
  • 70 spots since 2024 (#831 → #901)
  • 69 spots since 2020 (#832 → #901)
  • 240 spots since 2015 (#661 → #901)
  • Biggest jump: 581 spots in 1910 (#1,440 → #859)
  • Biggest drop: 264 spots in 1942 (#646 → #910)
Rise & fade · boys
111 yrs to peak
  • Debuted 1885
  • Peaked 1996 at #352 (692 births)
  • Births halved by 2016, 20 yrs later
Top of the charts · boys
Top 1,000 for 110 yrs
  • Top 10: never
  • Top 100: never
  • Top 1,000: 110 yrs · run 1922–2025
Share of babies · boys
1 in 2,737
  • Highest: 1 in 2,737 boys born in 1996 were named Guillermo (0.04%)
  • Latest: 1 in 6,470 boys born in 2025 (0.02%)
Era · boys
The 1990s
  • 20.1% of all boys named Guillermo (6,462) were born in this decade
Show by decade
DecadeBirthsBest rankAvg rank
1880s5#936 (1885)#936
1890s13#792 (1892)#925
1900s44#760 (1904)#1,077
1910s253#859 (1910)#1,149
1920s821#605 (1926)#740
1930s783#584 (1931)#689
1940s943#572 (1948)#680
1950s1,495#580 (1959)#604
1960s2,107#449 (1968)#540
1970s3,357#400 (1979)#433
1980s4,363#385 (1988)#406
1990s6,462#352 (1996)#373
2000s6,095#391 (2000)#434
2010s3,615#553 (2010)#685
2020s1,718#811 (2021)#843

All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.

Guillermo in 2001

boys
#402
620 births · 1 in 3,134 boys

Top boys' names in 2001

  1. #1Jacob32,573
  2. #2Michael29,689
  3. #3Matthew26,812
  4. #4Joshua26,024
  5. #5Christopher23,132
  6. #6Nicholas22,849
  7. #7Andrew22,422
  8. #8Joseph22,030
  9. #9Daniel21,013
  10. #10William20,110
  11. #402Guillermo620
More about 2001

boys

1,942,881 boys got a published name in 2001; 1 in 3,134 of them was named Guillermo, which outranked 96.7% of the 12,307 boys' names that year. The ten most popular names covered 12.7% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Guillermo
  1. #399Walker629
  2. #400Khalil626
  3. #401Steve624
  4. #402Guillermo620
  5. #403Issac618
  6. #403Kelvin618
  7. #405Blaine617
Biggest movers since 2000
Risers
  1. ↑ 5,879Jaheim#6,316 → #437
  2. ↑ 1,128Imanol#2,049 → #921
  3. ↑ 730Jagger#1,391 → #661
  4. ↑ 539Maximus#850 → #311
  5. ↑ 461Daunte#1,429 → #968
Fallers
  1. ↓ 476Tyreek#914 → #1,390
  2. ↓ 466Tyrique#949 → #1,415
  3. ↓ 456Infant#765 → #1,221
  4. ↓ 423Deion#893 → #1,316
  5. ↓ 291Nicklaus#986 → #1,277

Among names in the top 1,000 of either year.

See the top 100 for 2001 →