Leo

#5,410 for girls in 2025, 23 births · #19 for boys in 2025, 8,173 births
Given to boys 99.2% of the time

Showing
Show data for
Peak · boys
2023 · 8,160 births
Debut · boys
147 births
In top 100 · boys
69 yrs
of 146 years
Total births · boys
259,988
since 1880

Leo over time

boys

Rank among boys' names. Click any year to open it.

#1#10#100rank188019001920194019601980200020201942boysat peak
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#5,41023#198,173
2024#6,39418#247,823
2023#4,74628#188,160
2022#4,37832#228,293
2021#4,32632#317,803
2020#4,35831#367,229
2019#5,61222#407,504
2018#6,24819#506,773
2017#6,80817#625,965
2016#8,39313#745,299
2015#9,48111#914,603
2014#7,30216#973,976
2013#11,0009#1123,511
2012#12,1998#1342,879
2011#14,8246#1672,250
2010#1911,946
2009#15,2426#2101,802
2008#15,4056#2281,628
2007#2381,531
2006#2351,501
2005#13,0107#2581,275
2004#16,0995#2651,239
2003#11,3258#2851,095
2002#13,5956#338809
2001#360736
2000#388658
1999#440524
1998#434527
1997#471458
1996#482447
1995#13,3865#485446
1994#462474
1993#11,7806#463456
1992#462469
1991#441506
1990#477431
1989#12,3625#454428
1988#10,3866#426451
1987#8,7787#410452
1986#422415
1985#10,6775#404447
1984#396430
1983#8,0477#387429
1982#9,2376#366483
1981#9,1106#341533
1980#367473
1979#362484
1978#7,6497#352478
1977#9,6525#358484
1976#7,2967#348481
1975#7,1737#336516
1974#340511
1973#6,0808#335509
1972#6,5587#326550
1971#6,6197#302651
1970#7,0706#294701
1969#273741
1968#7,0165#279695
1967#4,9828#261767
1966#244856
1965#5,8176#247902
1964#4,6369#2331,028
1963#5,8916#2371,016
1962#4,5339#2321,100
1961#2301,178
1960#4,4379#2301,204
1959#3,82711#2021,432
1958#4,1939#1951,428
1957#4,2029#1901,511
1956#4,4678#1841,550
1955#4,0699#1751,576
1954#5,1486#1721,613
1953#3,10613#1621,656
1952#4,9086#1711,558
1951#5,4145#1561,658
1950#4,7386#1601,554
1949#3,39310#1531,646
1948#5,2435#1511,718
1947#4,0078#1471,805
1946#2,73913#1471,647
1945#2,74211#1371,582
1944#2,94610#1321,592
1943#2,86111#1331,694
1942#2,31115#1201,800
1941#2,19015#1161,726
1940#2,10915#1121,752
1939#2,20614#1081,842
1938#2,22514#1041,952
1937#2,31713#972,015
1936#1,95016#942,017
1935#2,30513#922,142
1934#1,77119#862,309
1933#1,55223#752,352
1932#1,63422#742,500
1931#1,14839#692,700
1930#1,08446#633,035
1929#1,44728#603,018
1928#1,14744#613,095
1927#1,00058#553,536
1926#1,03252#543,552
1925#1,03753#543,775
1924#1,12348#513,990
1923#1,06551#493,973
1922#1,07850#513,901
1921#1,07250#504,066
1920#92162#484,054
1919#98453#493,802
1918#91062#484,036
1917#97851#473,779
1916#88259#473,621
1915#95848#473,527
1914#1,00335#472,655
1913#1,06726#482,031
1912#1,29717#491,654
1911#1,03118#51844
1910#85925#51707
1909#93519#49609
1908#82922#49584
1907#94516#42651
1906#1,15411#47508
1905#1,01114#46512
1904#83719#42552
1903#1,07611#37636
1902#93614#43551
1901#96112#42456
1900#91717#46570
1899#1,03410#43482
1898#75020#39588
1897#93112#46462
1896#67022#47497
1895#1,2997#41509
1894#99810#41515
1893#66219#45448
1892#79614#49444
1891#1,0068#51353
1890#79112#49393
1889#9508#59325
1888#83710#57353
1887#1,0366#73232
1886#8288#73240
1885#65811#83199
1884#9306#84192
1883#95142
1882#99146
1881#7406#103122
1880#7386#92147
First appearance
1880

In the first year the SSA published name data, Leo was already there! It came in at #92, and was given to 147 baby boys.


Quietest stretch: 1880–1883, when fewer than 150 boys a year got the name.

See more about Leo
Momentum · boys
Rising
  • 5 spots since 2024 (#24#19)
  • 17 spots since 2020 (#36#19)
  • 72 spots since 2015 (#91#19)
  • Biggest jump: 53 spots in 2003 (#338#285)
  • Biggest drop: 28 spots in 1960 (#202#230)
Rise & fade · boys
143 yrs to peak
  • Debuted 1880
  • Peaked 2023 at #18 (8,160 births)
  • Not yet halved from its peak
Top of the charts · boys
Top 100 for 69 yrs
  • Top 10: never
  • Top 100: 69 yrs · run 1882–1937
  • Top 1,000: 146 yrs · run 1880–2025
Share of babies · boys
1 in 187
  • Highest: 1 in 187 boys born in 1903 were named Leo (0.53%)
  • Latest: 1 in 209 boys born in 2025 (0.48%)
  • Its best rank, #18 in 2023, was only 1 in 210 (0.48%) — a smaller share of a much bigger birth year
Era · boys
The 2020s
  • 18.3% of all boys named Leo (47,481) were born in this decade
  • Comeback: #37 (1903) → #485 (1995) → #18 (2023)
Show by decade
DecadeBirthsBest rankAvg rank
1880s2,098#57 (1888)#82
1890s4,691#39 (1898)#45
1900s5,629#37 (1903)#44
1910s26,656#47 (1917)#48
1920s36,960#48 (1920)#53
1930s22,864#63 (1930)#86
1940s16,962#112 (1940)#135
1950s15,536#156 (1951)#177
1960s9,487#230 (1960)#247
1970s5,365#294 (1970)#335
1980s4,541#341 (1981)#397
1990s4,738#434 (1998)#462
2000s12,274#210 (2009)#281
2010s44,706#40 (2019)#102
2020s47,481#18 (2023)#25

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.

Leo in 1942

girls
#2,311
15 births · 1 in 90,048 girls
boys
#120
1,800 births · 1 in 767 boys

Top girls' names in 1942

  1. #1Mary63,256
  2. #2Barbara44,739
  3. #3Patricia39,465
  4. #4Linda31,613
  5. #5Carol30,272
  6. #6Sandra24,994
  7. #7Judith24,792
  8. #8Nancy23,327
  9. #9Betty21,659
  10. #10Carolyn19,978
  11. #2,311Leo15

Top boys' names in 1942

  1. #1James77,182
  2. #2Robert71,845
  3. #3John66,043
  4. #4William54,890
  5. #5Richard43,593
  6. #6David35,905
  7. #7Charles35,854
  8. #8Thomas31,100
  9. #9Ronald27,138
  10. #10Donald23,955
  11. #120Leo1,800
More about 1942

girls

1,350,719 girls got a published name in 1942; 1 in 90,048 of them was named Leo, which outranked 57.0% of the 5,378 girls' names that year. The ten most popular names covered 24.0% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Leo
  1. #2,214Venice16
  2. #2,214Verlyn16
  3. #2,214Wyona16
  4. #2,311Leo15
  5. #2,311Aggie15
  6. #2,311Aleda15
  7. #2,311Annamay15
  8. #2,416Adline14
  9. #2,416Alona14
  10. #2,416Aneta14

Tied with 104 names at #2,311; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 1941
Risers
  1. 3,567Michal#4,420#853
  2. 1,885Merrily#2,397#512
  3. 1,081Merrilee#1,954#873
  4. 783Jerrilyn#1,610#827
  5. 760Candace#1,418#658
Fallers
  1. 354Rebekah#924#1,278
  2. 350Leatha#830#1,180
  3. 307Nella#993#1,300
  4. 272Arla#934#1,206
  5. 262Vivien#735#997

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

boys

1,381,161 boys got a published name in 1942; 1 in 767 of them was named Leo, which outranked 97.0% of the 4,044 boys' names that year. The ten most popular names covered 33.8% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Leo
  1. #117Mark2,039
  2. #118Charlie1,869
  3. #119Jackie1,847
  4. #120Leo1,800
  5. #121Rodney1,788
  6. #122Herman1,787
  7. #123Keith1,785
Biggest movers since 1941
Risers
  1. 2,993Macarthur#3,505#512
  2. 1,546Mcarthur#1,903#357
  3. 655Collin#1,588#933
  4. 514Delmas#1,254#740
  5. 390Colin#713#323
Fallers
  1. 525Otho#971#1,496
  2. 440Florian#918#1,358
  3. 421Martha#960#1,381
  4. 407Watson#951#1,358
  5. 371Gaylen#987#1,358

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

See the top 100 for 1942