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#100rank188019001920194019601980200020201964boysat 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.

Where Leo is popular in 1964

  • Rank in state
  • Top 10
  • 11–50
  • 51–100
  • 101–500
  • 501+
  • Not published
Alaska: fewer than 5 boys named Leo, so not publishedAKMaine: #106 for boys · 14 births · 1 in 704 boysMEVermont: fewer than 5 boys named Leo, so not publishedVTNew Hampshire: #130 for boys · 6 births · 1 in 997 boysNHWashington: #268 for boys · 10 births · 1 in 2,672 boysWAIdaho: fewer than 5 boys named Leo, so not publishedIDMontana: #154 for boys · 8 births · 1 in 817 boysMTNorth Dakota: fewer than 5 boys named Leo, so not publishedNDMinnesota: #214 for boys · 16 births · 1 in 2,318 boysMNIllinois: #227 for boys · 53 births · 1 in 1,993 boysILWisconsin: #229 for boys · 14 births · 1 in 3,038 boysWIMichigan: #210 for boys · 43 births · 1 in 1,959 boysMINew York: #217 for boys · 90 births · 1 in 1,913 boysNYMassachusetts: #89 for boys · 66 births · 1 in 815 boysMARhode Island: #90 for boys · 11 births · 1 in 786 boysRIOregon: #195 for boys · 12 births · 1 in 1,294 boysORNevada: fewer than 5 boys named Leo, so not publishedNVWyoming: fewer than 5 boys named Leo, so not publishedWYSouth Dakota: fewer than 5 boys named Leo, so not publishedSDIowa: #210 for boys · 14 births · 1 in 1,922 boysIAIndiana: #272 for boys · 17 births · 1 in 2,990 boysINOhio: #246 for boys · 36 births · 1 in 2,815 boysOHPennsylvania: #160 for boys · 74 births · 1 in 1,449 boysPANew Jersey: #175 for boys · 42 births · 1 in 1,469 boysNJConnecticut: #189 for boys · 14 births · 1 in 1,877 boysCTCalifornia: #236 for boys · 108 births · 1 in 1,699 boysCAUtah: fewer than 5 boys named Leo, so not publishedUTColorado: #182 for boys · 17 births · 1 in 1,183 boysCONebraska: #243 for boys · 6 births · 1 in 2,369 boysNEMissouri: #257 for boys · 17 births · 1 in 2,535 boysMOKentucky: #385 for boys · 5 births · 1 in 6,556 boysKYWest Virginia: #295 for boys · 5 births · 1 in 3,422 boysWVVirginia: #259 for boys · 20 births · 1 in 2,140 boysVAMaryland: #173 for boys · 28 births · 1 in 1,176 boysMDDelaware: fewer than 5 boys named Leo, so not publishedDEArizona: #172 for boys · 20 births · 1 in 814 boysAZNew Mexico: #132 for boys · 21 births · 1 in 558 boysNMKansas: #196 for boys · 14 births · 1 in 1,400 boysKSArkansas: #296 for boys · 8 births · 1 in 2,381 boysARTennessee: #451 for boys · 5 births · 1 in 7,674 boysTNNorth Carolina: #353 for boys · 13 births · 1 in 3,783 boysNCSouth Carolina: #281 for boys · 12 births · 1 in 2,214 boysSCDistrict of Columbia: #222 for boys · 8 births · 1 in 1,764 boysDCOklahoma: #263 for boys · 11 births · 1 in 1,961 boysOKLouisiana: #218 for boys · 34 births · 1 in 1,169 boysLAMississippi: #290 for boys · 11 births · 1 in 2,288 boysMSAlabama: #309 for boys · 13 births · 1 in 2,697 boysALGeorgia: #389 for boys · 10 births · 1 in 4,768 boysGAHawaii: fewer than 5 boys named Leo, so not publishedHITexas: #289 for boys · 62 births · 1 in 1,816 boysTXFlorida: #343 for boys · 16 births · 1 in 3,291 boysFL

Hover or tap a state for its numbers.

Top states · boys
  1. Massachusetts#89 · 1 in 815
  2. Rhode Island#90 · 1 in 786
  3. Maine#106 · 1 in 704
  4. New Hampshire#130 · 1 in 997
  5. New Mexico#132 · 1 in 558

Best ever in a state: #3 in District of Columbia, 2023.

Show every state
StateRankBirthsShare
Massachusetts#89661 in 815
Rhode Island#90111 in 786
Maine#106141 in 704
New Hampshire#13061 in 997
New Mexico#132211 in 558
Montana#15481 in 817
Pennsylvania#160741 in 1,449
Arizona#172201 in 814
Maryland#173281 in 1,176
New Jersey#175421 in 1,469
Colorado#182171 in 1,183
Connecticut#189141 in 1,877
Oregon#195121 in 1,294
Kansas#196141 in 1,400
Iowa#210141 in 1,922
Michigan#210431 in 1,959
Minnesota#214161 in 2,318
New York#217901 in 1,913
Louisiana#218341 in 1,169
District of Columbia#22281 in 1,764
Illinois#227531 in 1,993
Wisconsin#229141 in 3,038
California#2361081 in 1,699
Nebraska#24361 in 2,369
Ohio#246361 in 2,815
Missouri#257171 in 2,535
Virginia#259201 in 2,140
Oklahoma#263111 in 1,961
Washington#268101 in 2,672
Indiana#272171 in 2,990
South Carolina#281121 in 2,214
Texas#289621 in 1,816
Mississippi#290111 in 2,288
West Virginia#29551 in 3,422
Arkansas#29681 in 2,381
Alabama#309131 in 2,697
Florida#343161 in 3,291
North Carolina#353131 in 3,783
Kentucky#38551 in 6,556
Georgia#389101 in 4,768
Tennessee#45151 in 7,674
Alaska———
Delaware———
Hawaii———
Idaho———
Nevada———
North Dakota———
South Dakota———
Utah———
Vermont———
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 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 1964

girls
#4,636
9 births · 1 in 210,539 girls
boys
#233
1,028 births · 1 in 1,938 boys

Top girls' names in 1964

  1. #1Lisa54,270
  2. #2Mary40,985
  3. #3Susan31,515
  4. #4Karen30,243
  5. #5Patricia26,091
  6. #6Kimberly24,128
  7. #7Donna23,808
  8. #8Linda23,629
  9. #9Cynthia20,321
  10. #10Tammy20,043
  11. #4,636Leo9

Top boys' names in 1964

  1. #1Michael82,617
  2. #2John82,508
  3. #3David75,043
  4. #4James73,026
  5. #5Robert69,980
  6. #6Mark45,261
  7. #7William44,224
  8. #8Richard40,098
  9. #9Thomas34,463
  10. #10Jeffrey30,728
  11. #233Leo1,028
More about 1964

girls

1,894,855 girls got a published name in 1964; 1 in 210,539 of them was named Leo, which outranked 40.6% of the 7,806 girls' names that year. The ten most popular names covered 15.6% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Leo
  1. #4,355Vondra10
  2. #4,355Zenovia10
  3. #4,355Zeta10
  4. #4,636Leo9
  5. #4,636Abra9
  6. #4,636Adelfa9
  7. #4,636Adraine9
  8. #5,008Alandra8
  9. #5,008Aleathia8
  10. #5,008Alfreida8

Tied with 371 names at #4,636; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 1963
Risers
  1. ↑ 4,987Anjanette#5,891 → #904
  2. ↑ 2,403Deneen#2,619 → #216
  3. ↑ 2,162Denine#3,066 → #904
  4. ↑ 1,303Daneen#2,211 → #908
  5. ↑ 1,137Kecia#1,754 → #617
Fallers
  1. ↓ 341Leisha#993 → #1,334
  2. ↓ 320Cary#973 → #1,293
  3. ↓ 317Lisha#929 → #1,246
  4. ↓ 281Cecile#973 → #1,254
  5. ↓ 276Alexis#790 → #1,066

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

boys

1,992,698 boys got a published name in 1964; 1 in 1,938 of them was named Leo, which outranked 94.9% of the 4,594 boys' names that year. The ten most popular names covered 29.0% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Leo
  1. #230Roberto1,058
  2. #231Jimmie1,053
  3. #232Arnold1,043
  4. #233Leo1,028
  5. #234Roderick1,026
  6. #235Travis1,024
  7. #236Darin1,023
Biggest movers since 1963
Risers
  1. ↑ 864Deron#1,548 → #684
  2. ↑ 653Cassius#1,513 → #860
  3. ↑ 392Kipp#1,215 → #823
  4. ↑ 363Fitzgerald#1,052 → #689
  5. ↑ 334Adrain#1,279 → #945
Fallers
  1. ↓ 286Farrell#886 → #1,172
  2. ↓ 283Tal#813 → #1,096
  3. ↓ 278Laura#921 → #1,199
  4. ↓ 272Pamela#947 → #1,219
  5. ↓ 270Huey#891 → #1,161

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

See the top 100 for 1964 →