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#100rank188019001920194019601980200020201938boysat 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 1938

  • Rank in state
  • Top 10
  • 11–50
  • 51–100
  • 101–500
  • 501+
  • Not published
Alaska: fewer than 5 boys named Leo, so not publishedAKMaine: #49 for boys · 30 births · 1 in 207 boysMEVermont: #51 for boys · 12 births · 1 in 206 boysVTNew Hampshire: #29 for boys · 23 births · 1 in 135 boysNHWashington: #125 for boys · 15 births · 1 in 785 boysWAIdaho: #81 for boys · 13 births · 1 in 350 boysIDMontana: #75 for boys · 14 births · 1 in 312 boysMTNorth Dakota: #44 for boys · 30 births · 1 in 176 boysNDMinnesota: #73 for boys · 61 births · 1 in 368 boysMNIllinois: #108 for boys · 82 births · 1 in 696 boysILWisconsin: #85 for boys · 57 births · 1 in 435 boysWIMichigan: #74 for boys · 111 births · 1 in 399 boysMINew York: #92 for boys · 124 births · 1 in 712 boysNYMassachusetts: #41 for boys · 135 births · 1 in 213 boysMARhode Island: #31 for boys · 36 births · 1 in 124 boysRIOregon: #106 for boys · 13 births · 1 in 541 boysORNevada: fewer than 5 boys named Leo, so not publishedNVWyoming: fewer than 5 boys named Leo, so not publishedWYSouth Dakota: #76 for boys · 16 births · 1 in 304 boysSDIowa: #79 for boys · 51 births · 1 in 393 boysIAIndiana: #137 for boys · 29 births · 1 in 931 boysINOhio: #111 for boys · 69 births · 1 in 764 boysOHPennsylvania: #82 for boys · 131 births · 1 in 582 boysPANew Jersey: #94 for boys · 36 births · 1 in 708 boysNJConnecticut: #63 for boys · 25 births · 1 in 418 boysCTCalifornia: #116 for boys · 75 births · 1 in 628 boysCAUtah: #126 for boys · 9 births · 1 in 585 boysUTColorado: #74 for boys · 28 births · 1 in 334 boysCONebraska: #94 for boys · 23 births · 1 in 435 boysNEMissouri: #96 for boys · 53 births · 1 in 524 boysMOKentucky: #152 for boys · 31 births · 1 in 902 boysKYWest Virginia: #157 for boys · 21 births · 1 in 913 boysWVVirginia: #182 for boys · 19 births · 1 in 1,226 boysVAMaryland: #83 for boys · 28 births · 1 in 445 boysMDDelaware: fewer than 5 boys named Leo, so not publishedDEArizona: #57 for boys · 23 births · 1 in 213 boysAZNew Mexico: #42 for boys · 36 births · 1 in 158 boysNMKansas: #110 for boys · 26 births · 1 in 510 boysKSArkansas: #136 for boys · 24 births · 1 in 758 boysARTennessee: #221 for boys · 14 births · 1 in 1,915 boysTNNorth Carolina: #187 for boys · 31 births · 1 in 1,152 boysNCSouth Carolina: #176 for boys · 17 births · 1 in 1,141 boysSCDistrict of Columbia: #79 for boys · 13 births · 1 in 407 boysDCOklahoma: #118 for boys · 36 births · 1 in 586 boysOKLouisiana: #59 for boys · 84 births · 1 in 255 boysLAMississippi: #126 for boys · 29 births · 1 in 739 boysMSAlabama: #107 for boys · 43 births · 1 in 639 boysALGeorgia: #236 for boys · 15 births · 1 in 1,972 boysGAHawaii: fewer than 5 boys named Leo, so not publishedHITexas: #96 for boys · 129 births · 1 in 459 boysTXFlorida: #123 for boys · 22 births · 1 in 628 boysFL

Hover or tap a state for its numbers.

Top states · boys
  1. New Hampshire#29 · 1 in 135
  2. Rhode Island#31 · 1 in 124
  3. Massachusetts#41 · 1 in 213
  4. New Mexico#42 · 1 in 158
  5. North Dakota#44 · 1 in 176

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

Show every state
StateRankBirthsShare
New Hampshire#29231 in 135
Rhode Island#31361 in 124
Massachusetts#411351 in 213
New Mexico#42361 in 158
North Dakota#44301 in 176
Maine#49301 in 207
Vermont#51121 in 206
Arizona#57231 in 213
Louisiana#59841 in 255
Connecticut#63251 in 418
Minnesota#73611 in 368
Colorado#74281 in 334
Michigan#741111 in 399
Montana#75141 in 312
South Dakota#76161 in 304
District of Columbia#79131 in 407
Iowa#79511 in 393
Idaho#81131 in 350
Pennsylvania#821311 in 582
Maryland#83281 in 445
Wisconsin#85571 in 435
New York#921241 in 712
Nebraska#94231 in 435
New Jersey#94361 in 708
Missouri#96531 in 524
Texas#961291 in 459
Oregon#106131 in 541
Alabama#107431 in 639
Illinois#108821 in 696
Kansas#110261 in 510
Ohio#111691 in 764
California#116751 in 628
Oklahoma#118361 in 586
Florida#123221 in 628
Washington#125151 in 785
Mississippi#126291 in 739
Utah#12691 in 585
Arkansas#136241 in 758
Indiana#137291 in 931
Kentucky#152311 in 902
West Virginia#157211 in 913
South Carolina#176171 in 1,141
Virginia#182191 in 1,226
North Carolina#187311 in 1,152
Tennessee#221141 in 1,915
Georgia#236151 in 1,972
Alaska———
Delaware———
Hawaii———
Nevada———
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 1938

girls
#2,225
14 births · 1 in 78,818 girls
boys
#104
1,952 births · 1 in 568 boys

Top girls' names in 1938

  1. #1Mary56,225
  2. #2Barbara39,277
  3. #3Patricia27,560
  4. #4Betty25,506
  5. #5Shirley23,766
  6. #6Carol19,421
  7. #7Nancy18,951
  8. #8Dorothy16,358
  9. #9Margaret15,330
  10. #10Joan14,303
  11. #2,225Leo14

Top boys' names in 1938

  1. #1Robert62,271
  2. #2James59,102
  3. #3John50,517
  4. #4William42,433
  5. #5Richard34,385
  6. #6Charles31,151
  7. #7Donald26,677
  8. #8David22,994
  9. #9Thomas21,381
  10. #10Ronald20,295
  11. #104Leo1,952
More about 1938

girls

1,103,456 girls got a published name in 1938; 1 in 78,818 of them was named Leo, which outranked 55.5% of the 4,995 girls' names that year. The ten most popular names covered 23.3% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Leo
  1. #2,113Wilene15
  2. #2,113Zada15
  3. #2,113Zana15
  4. #2,225Leo14
  5. #2,225Adelene14
  6. #2,225Afton14
  7. #2,225Aldean14
  8. #2,340Adel13
  9. #2,340Alethea13
  10. #2,340Alla13

Tied with 114 names at #2,225; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 1937
Risers
  1. ↑ 2,209Danielle#2,940 → #731
  2. ↑ 833Lorelei#1,451 → #618
  3. ↑ 623Helaine#1,493 → #870
  4. ↑ 399Janine#1,330 → #931
  5. ↑ 392Imelda#1,282 → #890
Fallers
  1. ↓ 1,261Noreta#964 → #2,225
  2. ↓ 513Norita#532 → #1,045
  3. ↓ 432Noretta#856 → #1,288
  4. ↓ 366Ferne#950 → #1,316
  5. ↓ 327Verdell#904 → #1,231

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

boys

1,109,147 boys got a published name in 1938; 1 in 568 of them was named Leo, which outranked 97.4% of the 4,035 boys' names that year. The ten most popular names covered 33.5% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Leo
  1. #101Curtis2,002
  2. #102Warren1,997
  3. #103Vernon1,958
  4. #104Leo1,952
  5. #105Jackie1,943
  6. #106Tom1,931
  7. #107Jesse1,912
Biggest movers since 1937
Risers
  1. ↑ 1,314Dion#2,197 → #883
  2. ↑ 448Tex#1,212 → #764
  3. ↑ 425Lonny#1,233 → #808
  4. ↑ 401Gonzalo#1,180 → #779
  5. ↑ 383Lance#722 → #339
Fallers
  1. ↓ 741Worth#1,000 → #1,741
  2. ↓ 528Estel#869 → #1,397
  3. ↓ 492Milburn#845 → #1,337
  4. ↓ 412Lonzo#835 → #1,247
  5. ↓ 405Joy#932 → #1,337

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

See the top 100 for 1938 →