Millie is an established girls' name that has climbed to its highest level yet, peaking in 2025.
Millie is predominantly a girl name. In 2025 it ranked #73 for girl births in the United States (and #183 across all names), given to 3,353 babies. Millie was first reported in SSA data in 1880 and peaked in 2025 (3,353 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 3,353 | 3,353 | #73 | — |
| 2024 | 2,920 | 2,920 | #87 | — |
| 2023 | 2,564 | 2,564 | #105 | — |
| 2022 | 2,197 | 2,197 | #128 | — |
| 2021 | 1,702 | 1,702 | #173 | #13,430 |
| 2020 | 1,504 | 1,504 | #190 | — |
| 2019 | 1,317 | 1,317 | #240 | — |
| 2018 | 1,098 | 1,098 | #304 | — |
| 2017 | 895 | 895 | #353 | — |
| 2016 | 743 | 743 | #434 | — |
| 2015 | 682 | 682 | #469 | — |
| 2014 | 618 | 618 | #507 | — |
| 2013 | 481 | 481 | #592 | — |
| 2012 | 385 | 385 | #723 | — |
| 2011 | 330 | 330 | #812 | — |
| 2010 | 311 | 311 | #861 | — |
| 2009 | 323 | 323 | #861 | — |
| 2008 | 261 | 261 | #1,013 | — |
| 2007 | 151 | 151 | #1,528 | — |
| 2006 | 135 | 135 | #1,593 | — |
| 2005 | 131 | 131 | #1,562 | — |
| 2004 | 145 | 145 | #1,430 | — |
| 2003 | 174 | 174 | #1,220 | — |
| 2002 | 91 | 91 | #1,949 | — |
| 2001 | 84 | 84 | #2,027 | — |
| 2000 | 83 | 83 | #2,008 | — |
| 1999 | 59 | 59 | #2,459 | — |
| 1998 | 60 | 60 | #2,358 | — |
| 1997 | 52 | — | #2,500 | — |
| 1996 | 34 | — | #3,409 | — |
| 1995 | 43 | — | #2,830 | — |
| 1994 | 50 | — | #2,525 | — |
| 1993 | 44 | — | #2,757 | — |
| 1992 | 35 | — | #3,251 | — |
| 1991 | 50 | — | #2,503 | — |
| 1990 | 45 | — | #2,629 | — |
| 1989 | 59 | — | #2,113 | — |
| 1988 | 37 | — | #2,843 | — |
| 1987 | 43 | — | #2,422 | — |
| 1986 | 41 | — | #2,453 | — |
| 1985 | 39 | — | #2,526 | — |
| 1984 | 40 | — | #2,404 | — |
| 1983 | 43 | — | #2,262 | — |
| 1982 | 48 | — | #2,138 | — |
| 1981 | 59 | — | #1,858 | — |
| 1980 | 53 | — | #2,001 | — |
| 1979 | 50 | — | #2,040 | — |
| 1978 | 65 | — | #1,645 | — |
| 1977 | 52 | — | #1,915 | — |
| 1976 | 61 | — | #1,627 | — |
| 1975 | 76 | — | #1,395 | — |
| 1974 | 80 | — | #1,330 | — |
| 1973 | 89 | — | #1,209 | — |
| 1972 | 68 | — | #1,441 | — |
| 1971 | 104 | — | #1,129 | — |
| 1970 | 96 | — | #1,194 | — |
| 1969 | 102 | — | #1,096 | — |
| 1968 | 78 | — | #1,240 | — |
| 1967 | 82 | — | #1,180 | — |
| 1966 | 110 | — | #980 | — |
| 1965 | 142 | — | #837 | — |
| 1964 | 151 | — | #848 | — |
| 1963 | 162 | — | #817 | — |
| 1962 | 153 | — | #853 | — |
| 1961 | 153 | — | #862 | — |
| 1960 | 156 | — | #830 | — |
| 1959 | 198 | — | #710 | — |
| 1958 | 185 | — | #727 | — |
| 1957 | 189 | — | #729 | — |
| 1956 | 205 | — | #671 | — |
| 1955 | 180 | — | #704 | — |
| 1954 | 187 | — | #686 | — |
| 1953 | 189 | — | #655 | — |
| 1952 | 189 | — | #649 | — |
| 1951 | 226 | — | #569 | — |
| 1950 | 184 | — | #624 | — |
| 1949 | 213 | — | #575 | — |
| 1948 | 242 | — | #533 | — |
| 1947 | 247 | — | #537 | — |
| 1946 | 221 | — | #531 | — |
| 1945 | 221 | — | #488 | — |
| 1944 | 221 | — | #481 | — |
| 1943 | 226 | — | #495 | — |
| 1942 | 230 | — | #490 | — |
| 1941 | 224 | — | #466 | — |
| 1940 | 237 | — | #448 | #3,785 |
| 1939 | 242 | — | #434 | — |
| 1938 | 216 | — | #458 | — |
| 1937 | 210 | — | #458 | #3,865 |
| 1936 | 250 | — | #407 | — |
| 1935 | 274 | — | #385 | — |
| 1934 | 274 | — | #389 | — |
| 1933 | 306 | — | #366 | #3,522 |
| 1932 | 300 | — | #382 | #3,275 |
| 1931 | 296 | — | #373 | — |
| 1930 | 265 | — | #411 | #3,198 |
| 1929 | 278 | — | #402 | #4,361 |
| 1928 | 311 | — | #384 | #3,273 |
| 1927 | 344 | — | #375 | #2,643 |
| 1926 | 388 | — | #345 | #2,380 |
| 1925 | 376 | — | #354 | #4,045 |
| 1924 | 395 | — | #341 | #3,730 |
| 1923 | 420 | — | #323 | #2,295 |
| 1922 | 473 | — | #300 | #2,206 |
| 1921 | 501 | — | #298 | #2,923 |
| 1920 | 492 | — | #298 | #2,301 |
| 1919 | 514 | — | #284 | #3,044 |
| 1918 | 513 | — | #282 | #3,598 |
| 1917 | 584 | — | #260 | #2,661 |
| 1916 | 536 | — | #264 | #2,355 |
| 1915 | 530 | — | #257 | #2,757 |
| 1914 | 410 | — | #258 | #2,395 |
| 1913 | 342 | — | #253 | #2,696 |
| 1912 | 293 | — | #262 | — |
| 1911 | 216 | — | #265 | — |
| 1910 | 252 | — | #245 | #1,768 |
| 1909 | 219 | — | #239 | — |
| 1908 | 177 | — | #267 | — |
| 1907 | 213 | — | #229 | #1,291 |
| 1906 | 213 | — | #214 | — |
| 1905 | 193 | — | #223 | — |
| 1904 | 181 | — | #228 | — |
| 1903 | 189 | — | #221 | — |
| 1902 | 185 | — | #219 | — |
| 1901 | 196 | — | #205 | — |
| 1900 | 229 | — | #209 | — |
| 1899 | 192 | — | #200 | — |
| 1898 | 197 | — | #208 | — |
| 1897 | 204 | — | #194 | — |
| 1896 | 213 | — | #188 | — |
| 1895 | 181 | — | #201 | — |
| 1894 | 185 | — | #192 | — |
| 1893 | 198 | — | #180 | — |
| 1892 | 193 | — | #183 | — |
| 1891 | 192 | — | #174 | — |
| 1890 | 204 | — | #170 | — |
| 1889 | 174 | — | #168 | — |
| 1888 | 213 | — | #149 | — |
| 1887 | 168 | — | #149 | — |
| 1886 | 170 | — | #145 | — |
| 1885 | 152 | — | #150 | — |
| 1884 | 144 | — | #150 | — |
| 1883 | 155 | — | #131 | — |
| 1882 | 122 | — | #146 | — |
| 1881 | 124 | — | #128 | — |
| 1880 | 105 | — | #145 | — |