Leonidas is an established boys' name that has climbed to its highest level yet, peaking in 2022.
Leonidas is a boy name. In 2025 it ranked #510 for boy births in the United States (and #1,027 across all names), given to 591 babies. Leonidas first appears in 1880 and peaked in 2022 (760 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 591 | 591 | #510 |
| 2024 | 597 | 597 | #510 |
| 2023 | 638 | 638 | #476 |
| 2022 | 760 | 760 | #421 |
| 2021 | 688 | 688 | #446 |
| 2020 | 649 | 649 | #457 |
| 2019 | 608 | 608 | #482 |
| 2018 | 569 | 569 | #504 |
| 2017 | 582 | 582 | #498 |
| 2016 | 593 | 593 | #505 |
| 2015 | 556 | 556 | #518 |
| 2014 | 494 | 494 | #559 |
| 2013 | 337 | 337 | #704 |
| 2012 | 288 | 288 | #788 |
| 2011 | 234 | 234 | #888 |
| 2010 | 218 | 218 | #927 |
| 2009 | 201 | 201 | #986 |
| 2008 | 241 | 241 | #880 |
| 2007 | 152 | 152 | #1,167 |
| 2006 | 19 | 19 | #4,795 |
| 2005 | 27 | 27 | #3,581 |
| 2004 | 22 | 22 | #4,085 |
| 2003 | 28 | 28 | #3,332 |
| 2002 | 13 | 13 | #5,599 |
| 2001 | 14 | 14 | #5,303 |
| 2000 | 16 | 16 | #4,707 |
| 1999 | 10 | 10 | #6,318 |
| 1998 | 18 | 18 | #3,946 |
| 1997 | 12 | — | #5,153 |
| 1996 | 10 | — | #5,804 |
| 1995 | 10 | — | #5,748 |
| 1994 | 10 | — | #5,724 |
| 1993 | 11 | — | #5,224 |
| 1992 | 19 | — | #3,411 |
| 1991 | 17 | — | #3,565 |
| 1990 | 18 | — | #3,402 |
| 1989 | 20 | — | #3,044 |
| 1988 | 11 | — | #4,337 |
| 1987 | 9 | — | #4,792 |
| 1986 | 12 | — | #3,787 |
| 1985 | 18 | — | #2,783 |
| 1984 | 16 | — | #2,896 |
| 1983 | 13 | — | #3,341 |
| 1982 | 18 | — | #2,656 |
| 1981 | 10 | — | #4,026 |
| 1980 | 15 | — | #3,041 |
| 1979 | 23 | — | #2,203 |
| 1978 | 10 | — | #3,741 |
| 1977 | 6 | — | #5,552 |
| 1976 | 17 | — | #2,563 |
| 1975 | 15 | — | #2,709 |
| 1974 | 13 | — | #2,884 |
| 1973 | 10 | — | #3,346 |
| 1972 | 11 | — | #3,080 |
| 1971 | 16 | — | #2,425 |
| 1970 | 13 | — | #2,692 |
| 1969 | 9 | — | #3,219 |
| 1968 | 11 | — | #2,674 |
| 1967 | 14 | — | #2,216 |
| 1966 | 17 | — | #1,935 |
| 1965 | 6 | — | #3,757 |
| 1964 | 15 | — | #2,166 |
| 1963 | 10 | — | #2,785 |
| 1962 | 11 | — | #2,602 |
| 1961 | 14 | — | #2,295 |
| 1960 | 5 | — | #4,373 |
| 1959 | 10 | — | #2,748 |
| 1958 | 10 | — | #2,742 |
| 1957 | 11 | — | #2,577 |
| 1956 | 6 | — | #3,765 |
| 1955 | 9 | — | #2,883 |
| 1954 | 10 | — | #2,673 |
| 1953 | 11 | — | #2,470 |
| 1951 | 7 | — | #3,238 |
| 1950 | 9 | — | #2,694 |
| 1949 | 6 | — | #3,540 |
| 1948 | 8 | — | #2,922 |
| 1947 | 9 | — | #2,783 |
| 1946 | 7 | — | #3,065 |
| 1945 | 6 | — | #3,184 |
| 1944 | 8 | — | #2,763 |
| 1943 | 9 | — | #2,658 |
| 1941 | 7 | — | #3,020 |
| 1940 | 11 | — | #2,257 |
| 1939 | 9 | — | #2,550 |
| 1938 | 10 | — | #2,416 |
| 1937 | 15 | — | #1,883 |
| 1936 | 13 | — | #2,019 |
| 1935 | 8 | — | #2,842 |
| 1934 | 8 | — | #2,854 |
| 1933 | 10 | — | #2,459 |
| 1932 | 12 | — | #2,266 |
| 1931 | 11 | — | #2,407 |
| 1930 | 12 | — | #2,383 |
| 1929 | 12 | — | #2,398 |
| 1928 | 19 | — | #1,799 |
| 1927 | 15 | — | #2,160 |
| 1926 | 14 | — | #2,261 |
| 1925 | 19 | — | #1,844 |
| 1924 | 21 | — | #1,754 |
| 1923 | 19 | — | #1,844 |
| 1922 | 18 | — | #1,930 |
| 1921 | 15 | — | #2,218 |
| 1920 | 28 | — | #1,408 |
| 1919 | 21 | — | #1,671 |
| 1918 | 18 | — | #1,867 |
| 1917 | 24 | — | #1,465 |
| 1916 | 19 | — | #1,673 |
| 1915 | 15 | — | #1,932 |
| 1914 | 12 | — | #1,919 |
| 1913 | 13 | — | #1,551 |
| 1911 | 6 | — | #1,652 |
| 1901 | 5 | — | #1,140 |
| 1898 | 7 | — | #951 |
| 1895 | 5 | — | #1,180 |
| 1893 | 6 | — | #978 |
| 1892 | 8 | — | #835 |
| 1887 | 6 | — | #883 |
| 1885 | 5 | — | #1,025 |
| 1882 | 6 | — | #902 |
| 1880 | 5 | — | #1,001 |