Is Unknown a boy or girl name?
Unknown is used for both boys and girls in close to equal numbers in the US. In 2024, 37 girls and 38 boys were named Unknown, so 49.3% were girls. Across 1880–2024, 49.9% of the 19,602 US babies named Unknown were girls.
- Boy rank, 2024
- #3,199
- Girl rank, 2024
- #4,021
- Babies named Unknown since 1880
- 19,602
- Most popular year
- 1954
- 1,193 babies
Boys and girls named Unknown, by decade
| Decade | Boys | Girls | Share girls |
|---|---|---|---|
| 1880s | 51 | 13 | 20.3% |
| 1890s | 97 | 45 | 31.7% |
| 1900s | 98 | 68 | 41% |
| 1910s | 211 | 123 | 36.8% |
| 1920s | 149 | 96 | 39.2% |
| 1930s | 64 | 110 | 63.2% |
| 1940s | 711 | 1,224 | 63.3% |
| 1950s | 4,206 | 4,723 | 52.9% |
| 1960s | 762 | 507 | 40% |
| 1970s | 196 | 150 | 43.4% |
| 1980s | 443 | 398 | 47.3% |
| 1990s | 1,296 | 1,146 | 46.9% |
| 2000s | 412 | 356 | 46.4% |
| 2010s | 789 | 592 | 42.9% |
| 2020s | 342 | 224 | 39.6% |
Every year
| Year | Boys | Boy rank | Girls | Girl rank |
|---|---|---|---|---|
| 2024 | 38 | #3,199 | 37 | #4,021 |
| 2023 | 77 | #1,997 | 46 | #3,468 |
| 2022 | 83 | #1,903 | 52 | #3,160 |
| 2021 | 84 | #1,850 | 49 | #3,289 |
| 2020 | 60 | #2,286 | 40 | #3,733 |
| 2019 | 77 | #1,932 | 53 | #3,080 |
| 2018 | 85 | #1,806 | 66 | #2,644 |
| 2017 | 67 | #2,089 | 47 | #3,379 |
| 2016 | 50 | #2,548 | 37 | #4,072 |
| 2015 | 60 | #2,251 | 43 | #3,647 |
| 2014 | 78 | #1,882 | 72 | #2,515 |
| 2013 | 97 | #1,602 | 68 | #2,623 |
| 2012 | 99 | #1,597 | 64 | #2,767 |
| 2011 | 87 | #1,716 | 77 | #2,414 |
| 2010 | 89 | #1,724 | 65 | #2,749 |
| 2009 | 113 | #1,484 | 84 | #2,334 |
| 2008 | 73 | #1,967 | 62 | #2,885 |
| 2007 | 42 | #2,862 | 31 | #4,802 |
| 2006 | 25 | #3,993 | 16 | #7,851 |
| 2005 | 23 | #4,052 | 25 | #5,251 |
| 2004 | 24 | #3,853 | 20 | #6,204 |
| 2003 | 31 | #3,112 | 30 | #4,411 |
| 2002 | 27 | #3,341 | 18 | #6,377 |
| 2001 | 15 | #5,132 | 28 | #4,440 |
| 2000 | 39 | #2,475 | 42 | #3,267 |
| 1999 | 16 | #4,528 | 26 | #4,436 |
| 1998 | 15 | #4,635 | 18 | #5,791 |
| 1997 | 34 | #2,444 | 16 | #6,155 |
| 1996 | 53 | #1,763 | 53 | #2,450 |
| 1995 | 248 | #667 | 223 | #866 |
| 1994 | 163 | #839 | 161 | #1,123 |
| 1993 | 121 | #990 | 94 | #1,627 |
| 1992 | 155 | #853 | 135 | #1,272 |
| 1991 | 299 | #588 | 258 | #796 |
| 1990 | 192 | #738 | 162 | #1,092 |
| 1989 | 262 | #610 | 251 | #774 |
| 1988 | 94 | #1,011 | 68 | #1,838 |
| 1987 | 15 | #3,329 | 18 | #4,657 |
| 1986 | 9 | #4,829 | 8 | #8,491 |
| 1985 | 11 | #4,034 | 0 | – |
| 1984 | 5 | #7,287 | 7 | #9,109 |
| 1983 | 8 | #4,879 | 12 | #5,808 |
| 1982 | 12 | #3,673 | 16 | #4,709 |
| 1981 | 18 | #2,676 | 11 | #6,305 |
| 1980 | 9 | #4,475 | 7 | #9,062 |
| 1979 | 12 | #3,557 | 10 | #6,676 |
| 1978 | 10 | #3,836 | 9 | #6,926 |
| 1977 | 13 | #3,190 | 12 | #5,523 |
| 1976 | 13 | #3,087 | 17 | #3,956 |
| 1975 | 18 | #2,447 | 21 | #3,395 |
| 1974 | 20 | #2,193 | 8 | #6,874 |
| 1973 | 20 | #2,119 | 23 | #3,012 |
| 1972 | 15 | #2,527 | 14 | #4,291 |
| 1971 | 33 | #1,524 | 18 | #3,643 |
| 1970 | 42 | #1,295 | 18 | #3,571 |
| 1969 | 28 | #1,564 | 23 | #2,838 |
| 1968 | 31 | #1,425 | 19 | #3,050 |
| 1967 | 41 | #1,180 | 18 | #3,074 |
| 1966 | 40 | #1,192 | 34 | #2,021 |
| 1965 | 35 | #1,316 | 29 | #2,246 |
| 1964 | 49 | #1,092 | 44 | #1,779 |
| 1963 | 71 | #891 | 54 | #1,546 |
| 1962 | 105 | #748 | 57 | #1,492 |
| 1961 | 168 | #613 | 96 | #1,124 |
| 1960 | 194 | #564 | 133 | #925 |
| 1959 | 188 | #569 | 145 | #851 |
| 1958 | 268 | #479 | 209 | #685 |
| 1957 | 391 | #386 | 323 | #533 |
| 1956 | 457 | #346 | 540 | #384 |
| 1955 | 497 | #332 | 564 | #368 |
| 1954 | 549 | #308 | 644 | #336 |
| 1953 | 525 | #313 | 600 | #338 |
| 1952 | 488 | #321 | 622 | #330 |
| 1951 | 439 | #328 | 565 | #334 |
| 1950 | 404 | #336 | 511 | #348 |
| 1949 | 278 | #402 | 443 | #373 |
| 1948 | 163 | #520 | 294 | #469 |
| 1947 | 99 | #697 | 148 | #696 |
| 1946 | 43 | #1,058 | 104 | #814 |
| 1945 | 42 | #993 | 54 | #1,077 |
| 1944 | 27 | #1,310 | 60 | #1,015 |
| 1943 | 30 | #1,279 | 56 | #1,076 |
| 1942 | 14 | #2,037 | 29 | #1,555 |
| 1941 | 9 | #2,641 | 17 | #2,092 |
| 1940 | 6 | #3,439 | 19 | #1,894 |
| 1939 | 7 | #3,091 | 12 | #2,573 |
| 1938 | 5 | #4,000 | 10 | #2,921 |
| 1937 | 6 | #3,499 | 13 | #2,441 |
| 1936 | 0 | – | 10 | #2,841 |
| 1935 | 6 | #3,617 | 12 | #2,559 |
| 1934 | 7 | #3,256 | 9 | #3,136 |
| 1933 | 6 | #3,610 | 7 | #3,716 |
| 1932 | 8 | #3,076 | 14 | #2,356 |
| 1931 | 6 | #3,730 | 13 | #2,417 |
| 1930 | 13 | #2,284 | 10 | #3,036 |
| 1929 | 10 | #2,750 | 10 | #3,123 |
| 1928 | 10 | #2,833 | 12 | #2,753 |
| 1927 | 7 | #3,755 | 11 | #3,039 |
| 1926 | 13 | #2,424 | 7 | #4,269 |
| 1925 | 22 | #1,675 | 6 | #4,921 |
| 1924 | 7 | #3,841 | 10 | #3,363 |
| 1923 | 24 | #1,587 | 5 | #5,667 |
| 1922 | 18 | #1,946 | 14 | #2,596 |
| 1921 | 20 | #1,825 | 12 | #2,924 |
| 1920 | 18 | #1,956 | 9 | #3,571 |
| 1919 | 28 | #1,380 | 13 | #2,628 |
| 1918 | 31 | #1,283 | 20 | #1,955 |
| 1917 | 22 | #1,583 | 19 | #1,917 |
| 1916 | 24 | #1,457 | 13 | #2,487 |
| 1915 | 24 | #1,406 | 19 | #1,792 |
| 1914 | 18 | #1,483 | 11 | #2,249 |
| 1913 | 17 | #1,309 | 11 | #2,020 |
| 1912 | 15 | #1,259 | 12 | #1,713 |
| 1911 | 19 | #756 | 5 | #2,834 |
| 1910 | 13 | #924 | 0 | – |
| 1909 | 6 | #1,429 | 0 | – |
| 1908 | 8 | #1,105 | 5 | #2,404 |
| 1907 | 12 | #809 | 8 | #1,631 |
| 1906 | 9 | #919 | 0 | – |
| 1905 | 9 | #916 | 11 | #1,233 |
| 1904 | 7 | #1,057 | 10 | #1,245 |
| 1903 | 6 | #1,122 | 6 | #1,776 |
| 1902 | 16 | #554 | 7 | #1,579 |
| 1901 | 9 | #777 | 6 | #1,659 |
| 1900 | 16 | #648 | 15 | #1,005 |
| 1899 | 8 | #850 | 10 | #1,092 |
| 1898 | 15 | #570 | 7 | #1,492 |
| 1897 | 9 | #783 | 7 | #1,376 |
| 1896 | 9 | #819 | 6 | #1,570 |
| 1895 | 9 | #790 | 0 | – |
| 1894 | 12 | #627 | 8 | #1,228 |
| 1893 | 7 | #899 | 0 | – |
| 1892 | 14 | #571 | 0 | – |
| 1891 | 9 | #698 | 0 | – |
| 1890 | 5 | #1,151 | 7 | #1,195 |
| 1889 | 6 | #966 | 8 | #1,018 |
| 1888 | 6 | #1,022 | 0 | – |
| 1887 | 5 | #1,059 | 0 | – |
| 1886 | 0 | – | 5 | #1,276 |
| 1885 | 7 | #830 | 0 | – |
| 1884 | 0 | – | 0 | – |
| 1883 | 7 | #793 | 0 | – |
| 1882 | 7 | #831 | 0 | – |
| 1881 | 8 | #700 | 0 | – |
| 1880 | 5 | #1,049 | 0 | – |
Highest rank
As a boy name, Unknown reached #308 in 1954. As a girl name, it reached #330 in 1952. Ranks count every name SSA published for that year and sex, so they go well past the top 1,000.
Names from the same era
These names were also most popular in the 1950s, with a similar number of babies. They can work as sibling or middle names that feel like they belong together.
Source: US Social Security Administration baby name data, 1880–2024. Counts are Social Security card applications for US births; SSA leaves out names given to fewer than 5 babies in a year. Updated 2026-10-05. How these numbers are made.