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
- Peak · boys
- 2023 · 8,160 births
- Debut · boys
- 147 births
- In top 100 · boys
- 69 yrsof 146 years
- Total births · boys
- 259,988since 1880
Leo over time
boys
Rank among boys' names. Click any year to open it.
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
| Year | girls | boys | ||
|---|---|---|---|---|
| rank | births | rank | births | |
| 2025 | #5,410 | 23 | #19 | 8,173 |
| 2024 | #6,394 | 18 | #24 | 7,823 |
| 2023 | #4,746 | 28 | #18 | 8,160 |
| 2022 | #4,378 | 32 | #22 | 8,293 |
| 2021 | #4,326 | 32 | #31 | 7,803 |
| 2020 | #4,358 | 31 | #36 | 7,229 |
| 2019 | #5,612 | 22 | #40 | 7,504 |
| 2018 | #6,248 | 19 | #50 | 6,773 |
| 2017 | #6,808 | 17 | #62 | 5,965 |
| 2016 | #8,393 | 13 | #74 | 5,299 |
| 2015 | #9,481 | 11 | #91 | 4,603 |
| 2014 | #7,302 | 16 | #97 | 3,976 |
| 2013 | #11,000 | 9 | #112 | 3,511 |
| 2012 | #12,199 | 8 | #134 | 2,879 |
| 2011 | #14,824 | 6 | #167 | 2,250 |
| 2010 | — | #191 | 1,946 | |
| 2009 | #15,242 | 6 | #210 | 1,802 |
| 2008 | #15,405 | 6 | #228 | 1,628 |
| 2007 | — | #238 | 1,531 | |
| 2006 | — | #235 | 1,501 | |
| 2005 | #13,010 | 7 | #258 | 1,275 |
| 2004 | #16,099 | 5 | #265 | 1,239 |
| 2003 | #11,325 | 8 | #285 | 1,095 |
| 2002 | #13,595 | 6 | #338 | 809 |
| 2001 | — | #360 | 736 | |
| 2000 | — | #388 | 658 | |
| 1999 | — | #440 | 524 | |
| 1998 | — | #434 | 527 | |
| 1997 | — | #471 | 458 | |
| 1996 | — | #482 | 447 | |
| 1995 | #13,386 | 5 | #485 | 446 |
| 1994 | — | #462 | 474 | |
| 1993 | #11,780 | 6 | #463 | 456 |
| 1992 | — | #462 | 469 | |
| 1991 | — | #441 | 506 | |
| 1990 | — | #477 | 431 | |
| 1989 | #12,362 | 5 | #454 | 428 |
| 1988 | #10,386 | 6 | #426 | 451 |
| 1987 | #8,778 | 7 | #410 | 452 |
| 1986 | — | #422 | 415 | |
| 1985 | #10,677 | 5 | #404 | 447 |
| 1984 | — | #396 | 430 | |
| 1983 | #8,047 | 7 | #387 | 429 |
| 1982 | #9,237 | 6 | #366 | 483 |
| 1981 | #9,110 | 6 | #341 | 533 |
| 1980 | — | #367 | 473 | |
| 1979 | — | #362 | 484 | |
| 1978 | #7,649 | 7 | #352 | 478 |
| 1977 | #9,652 | 5 | #358 | 484 |
| 1976 | #7,296 | 7 | #348 | 481 |
| 1975 | #7,173 | 7 | #336 | 516 |
| 1974 | — | #340 | 511 | |
| 1973 | #6,080 | 8 | #335 | 509 |
| 1972 | #6,558 | 7 | #326 | 550 |
| 1971 | #6,619 | 7 | #302 | 651 |
| 1970 | #7,070 | 6 | #294 | 701 |
| 1969 | — | #273 | 741 | |
| 1968 | #7,016 | 5 | #279 | 695 |
| 1967 | #4,982 | 8 | #261 | 767 |
| 1966 | — | #244 | 856 | |
| 1965 | #5,817 | 6 | #247 | 902 |
| 1964 | #4,636 | 9 | #233 | 1,028 |
| 1963 | #5,891 | 6 | #237 | 1,016 |
| 1962 | #4,533 | 9 | #232 | 1,100 |
| 1961 | — | #230 | 1,178 | |
| 1960 | #4,437 | 9 | #230 | 1,204 |
| 1959 | #3,827 | 11 | #202 | 1,432 |
| 1958 | #4,193 | 9 | #195 | 1,428 |
| 1957 | #4,202 | 9 | #190 | 1,511 |
| 1956 | #4,467 | 8 | #184 | 1,550 |
| 1955 | #4,069 | 9 | #175 | 1,576 |
| 1954 | #5,148 | 6 | #172 | 1,613 |
| 1953 | #3,106 | 13 | #162 | 1,656 |
| 1952 | #4,908 | 6 | #171 | 1,558 |
| 1951 | #5,414 | 5 | #156 | 1,658 |
| 1950 | #4,738 | 6 | #160 | 1,554 |
| 1949 | #3,393 | 10 | #153 | 1,646 |
| 1948 | #5,243 | 5 | #151 | 1,718 |
| 1947 | #4,007 | 8 | #147 | 1,805 |
| 1946 | #2,739 | 13 | #147 | 1,647 |
| 1945 | #2,742 | 11 | #137 | 1,582 |
| 1944 | #2,946 | 10 | #132 | 1,592 |
| 1943 | #2,861 | 11 | #133 | 1,694 |
| 1942 | #2,311 | 15 | #120 | 1,800 |
| 1941 | #2,190 | 15 | #116 | 1,726 |
| 1940 | #2,109 | 15 | #112 | 1,752 |
| 1939 | #2,206 | 14 | #108 | 1,842 |
| 1938 | #2,225 | 14 | #104 | 1,952 |
| 1937 | #2,317 | 13 | #97 | 2,015 |
| 1936 | #1,950 | 16 | #94 | 2,017 |
| 1935 | #2,305 | 13 | #92 | 2,142 |
| 1934 | #1,771 | 19 | #86 | 2,309 |
| 1933 | #1,552 | 23 | #75 | 2,352 |
| 1932 | #1,634 | 22 | #74 | 2,500 |
| 1931 | #1,148 | 39 | #69 | 2,700 |
| 1930 | #1,084 | 46 | #63 | 3,035 |
| 1929 | #1,447 | 28 | #60 | 3,018 |
| 1928 | #1,147 | 44 | #61 | 3,095 |
| 1927 | #1,000 | 58 | #55 | 3,536 |
| 1926 | #1,032 | 52 | #54 | 3,552 |
| 1925 | #1,037 | 53 | #54 | 3,775 |
| 1924 | #1,123 | 48 | #51 | 3,990 |
| 1923 | #1,065 | 51 | #49 | 3,973 |
| 1922 | #1,078 | 50 | #51 | 3,901 |
| 1921 | #1,072 | 50 | #50 | 4,066 |
| 1920 | #921 | 62 | #48 | 4,054 |
| 1919 | #984 | 53 | #49 | 3,802 |
| 1918 | #910 | 62 | #48 | 4,036 |
| 1917 | #978 | 51 | #47 | 3,779 |
| 1916 | #882 | 59 | #47 | 3,621 |
| 1915 | #958 | 48 | #47 | 3,527 |
| 1914 | #1,003 | 35 | #47 | 2,655 |
| 1913 | #1,067 | 26 | #48 | 2,031 |
| 1912 | #1,297 | 17 | #49 | 1,654 |
| 1911 | #1,031 | 18 | #51 | 844 |
| 1910 | #859 | 25 | #51 | 707 |
| 1909 | #935 | 19 | #49 | 609 |
| 1908 | #829 | 22 | #49 | 584 |
| 1907 | #945 | 16 | #42 | 651 |
| 1906 | #1,154 | 11 | #47 | 508 |
| 1905 | #1,011 | 14 | #46 | 512 |
| 1904 | #837 | 19 | #42 | 552 |
| 1903 | #1,076 | 11 | #37 | 636 |
| 1902 | #936 | 14 | #43 | 551 |
| 1901 | #961 | 12 | #42 | 456 |
| 1900 | #917 | 17 | #46 | 570 |
| 1899 | #1,034 | 10 | #43 | 482 |
| 1898 | #750 | 20 | #39 | 588 |
| 1897 | #931 | 12 | #46 | 462 |
| 1896 | #670 | 22 | #47 | 497 |
| 1895 | #1,299 | 7 | #41 | 509 |
| 1894 | #998 | 10 | #41 | 515 |
| 1893 | #662 | 19 | #45 | 448 |
| 1892 | #796 | 14 | #49 | 444 |
| 1891 | #1,006 | 8 | #51 | 353 |
| 1890 | #791 | 12 | #49 | 393 |
| 1889 | #950 | 8 | #59 | 325 |
| 1888 | #837 | 10 | #57 | 353 |
| 1887 | #1,036 | 6 | #73 | 232 |
| 1886 | #828 | 8 | #73 | 240 |
| 1885 | #658 | 11 | #83 | 199 |
| 1884 | #930 | 6 | #84 | 192 |
| 1883 | — | #95 | 142 | |
| 1882 | — | #99 | 146 | |
| 1881 | #740 | 6 | #103 | 122 |
| 1880 | #738 | 6 | #92 | 147 |
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 1943
- Rank in state
- Top 10
- 11–50
- 51–100
- 101–500
- 501+
- Not published
Hover or tap a state for its numbers.
Top states · boys
- North Dakota#46 · 1 in 209
- Rhode Island#46 · 1 in 219
- New Hampshire#47 · 1 in 207
- Massachusetts#47 · 1 in 264
- Maine#50 · 1 in 223
Best ever in a state: #3 in District of Columbia, 2023.
Show every state
| State | Rank | Births | Share |
|---|---|---|---|
| North Dakota | #46 | 28 | 1 in 209 |
| Rhode Island | #46 | 29 | 1 in 219 |
| Massachusetts | #47 | 155 | 1 in 264 |
| New Hampshire | #47 | 20 | 1 in 207 |
| Maine | #50 | 36 | 1 in 223 |
| New Mexico | #64 | 26 | 1 in 247 |
| Vermont | #67 | 10 | 1 in 295 |
| Louisiana | #86 | 74 | 1 in 367 |
| Connecticut | #90 | 23 | 1 in 772 |
| South Dakota | #90 | 13 | 1 in 411 |
| Idaho | #96 | 13 | 1 in 404 |
| Minnesota | #100 | 45 | 1 in 590 |
| Nebraska | #102 | 21 | 1 in 538 |
| Michigan | #103 | 89 | 1 in 659 |
| Arizona | #104 | 16 | 1 in 439 |
| Pennsylvania | #104 | 106 | 1 in 881 |
| Maryland | #106 | 30 | 1 in 654 |
| Utah | #109 | 15 | 1 in 517 |
| Montana | #112 | 8 | 1 in 575 |
| West Virginia | #112 | 33 | 1 in 611 |
| Wisconsin | #112 | 39 | 1 in 760 |
| New Jersey | #115 | 36 | 1 in 1,041 |
| Arkansas | #119 | 36 | 1 in 585 |
| Iowa | #120 | 33 | 1 in 676 |
| New York | #122 | 107 | 1 in 1,118 |
| Missouri | #123 | 49 | 1 in 707 |
| Colorado | #128 | 16 | 1 in 693 |
| Illinois | #129 | 76 | 1 in 960 |
| Florida | #136 | 29 | 1 in 752 |
| California | #146 | 86 | 1 in 952 |
| Kansas | #152 | 17 | 1 in 949 |
| Oklahoma | #154 | 24 | 1 in 940 |
| Washington | #160 | 17 | 1 in 1,183 |
| Indiana | #164 | 25 | 1 in 1,369 |
| Ohio | #165 | 45 | 1 in 1,509 |
| Kentucky | #175 | 25 | 1 in 1,184 |
| Mississippi | #176 | 21 | 1 in 1,182 |
| Texas | #177 | 81 | 1 in 962 |
| South Carolina | #181 | 20 | 1 in 1,222 |
| District of Columbia | #182 | 6 | 1 in 1,619 |
| Oregon | #199 | 7 | 1 in 1,652 |
| Alabama | #209 | 23 | 1 in 1,490 |
| Georgia | #217 | 20 | 1 in 1,834 |
| North Carolina | #219 | 27 | 1 in 1,613 |
| Virginia | #232 | 16 | 1 in 1,910 |
| Tennessee | #277 | 11 | 1 in 3,003 |
| 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
| Decade | Births | Best rank | Avg rank |
|---|---|---|---|
| 1880s | 2,098 | #57 (1888) | #82 |
| 1890s | 4,691 | #39 (1898) | #45 |
| 1900s | 5,629 | #37 (1903) | #44 |
| 1910s | 26,656 | #47 (1917) | #48 |
| 1920s | 36,960 | #48 (1920) | #53 |
| 1930s | 22,864 | #63 (1930) | #86 |
| 1940s | 16,962 | #112 (1940) | #135 |
| 1950s | 15,536 | #156 (1951) | #177 |
| 1960s | 9,487 | #230 (1960) | #247 |
| 1970s | 5,365 | #294 (1970) | #335 |
| 1980s | 4,541 | #341 (1981) | #397 |
| 1990s | 4,738 | #434 (1998) | #462 |
| 2000s | 12,274 | #210 (2009) | #281 |
| 2010s | 44,706 | #40 (2019) | #102 |
| 2020s | 47,481 | #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 1943
girls
#2,861
11 births · 1 in 126,845 girls
boys
#133
1,694 births · 1 in 843 boys
Top girls' names in 1943
Top boys' names in 1943
More about 1943
girls
1,395,293 girls got a published name in 1943; 1 in 126,845 of them was named Leo, which outranked 46.7% of the 5,367 girls' names that year. The ten most popular names covered 24.4% of girls (24.6% in 1880, 7.0% in 2025).
Ranked beside Leo
- #2,695Wilhelmena12
- #2,695Willine12
- #2,695Wilmer12
- #2,861Leo11
- #2,861Alba11
- #2,861Alease11
- #2,861Alena11
- #3,040Adriane10
- #3,040Ailene10
- #3,040Aldene10
Tied with 178 names at #2,861; 3 shown. Tied names share a rank, as in SSA's lists.
Biggest movers since 1942
Risers
Among names in the top 1,000 of either year.
boys
1,427,297 boys got a published name in 1943; 1 in 843 of them was named Leo, which outranked 96.7% of the 4,040 boys' names that year. The ten most popular names covered 34.1% of boys (44.2% in 1880, 8.0% in 2025).
Ranked beside Leo
Biggest movers since 1942
Risers
Among names in the top 1,000 of either year.