Is Cleo a boy or girl name?
Cleo is a girl name in the US. In 2024, 495 girls and 21 boys were named Cleo, so 95.9% were girls. Across 1880–2024, 74.2% of the 44,552 US babies named Cleo were girls.
- Boy rank, 2024
- #4,717
- Girl rank, 2024
- #603
- Babies named Cleo since 1880
- 44,552
- Most popular year
- 1920
- 1,399 babies
Boys and girls named Cleo, by decade
| Decade | Boys | Girls | Share girls |
|---|---|---|---|
| 1880s | 52 | 358 | 87.3% |
| 1890s | 166 | 1,153 | 87.4% |
| 1900s | 437 | 2,441 | 84.8% |
| 1910s | 2,348 | 7,368 | 75.8% |
| 1920s | 2,970 | 8,218 | 73.5% |
| 1930s | 1,876 | 4,183 | 69% |
| 1940s | 1,270 | 2,239 | 63.8% |
| 1950s | 875 | 1,321 | 60.2% |
| 1960s | 452 | 578 | 56.1% |
| 1970s | 331 | 331 | 50% |
| 1980s | 235 | 309 | 56.8% |
| 1990s | 170 | 471 | 73.5% |
| 2000s | 93 | 610 | 86.8% |
| 2010s | 135 | 1,378 | 91.1% |
| 2020s | 98 | 2,086 | 95.5% |
Every year
| Year | Boys | Boy rank | Girls | Girl rank |
|---|---|---|---|---|
| 2024 | 21 | #4,717 | 495 | #603 |
| 2023 | 25 | #4,244 | 488 | #610 |
| 2022 | 17 | #5,476 | 445 | #663 |
| 2021 | 19 | #4,961 | 355 | #796 |
| 2020 | 16 | #5,499 | 303 | #882 |
| 2019 | 12 | #6,849 | 270 | #968 |
| 2018 | 26 | #4,010 | 222 | #1,109 |
| 2017 | 18 | #5,141 | 153 | #1,468 |
| 2016 | 19 | #4,981 | 144 | #1,551 |
| 2015 | 16 | #5,556 | 119 | #1,759 |
| 2014 | 7 | #9,830 | 100 | #1,986 |
| 2013 | 7 | #9,843 | 81 | #2,287 |
| 2012 | 16 | #5,518 | 124 | #1,690 |
| 2011 | 7 | #9,813 | 87 | #2,175 |
| 2010 | 7 | #9,880 | 78 | #2,408 |
| 2009 | 5 | #12,832 | 72 | #2,574 |
| 2008 | 13 | #6,460 | 48 | #3,438 |
| 2007 | 12 | #6,694 | 63 | #2,866 |
| 2006 | 6 | #10,916 | 58 | #2,945 |
| 2005 | 12 | #6,291 | 51 | #3,091 |
| 2004 | 6 | #10,190 | 51 | #3,039 |
| 2003 | 7 | #8,823 | 58 | #2,714 |
| 2002 | 11 | #6,154 | 69 | #2,334 |
| 2001 | 5 | #10,872 | 74 | #2,198 |
| 2000 | 16 | #4,617 | 66 | #2,342 |
| 1999 | 14 | #4,807 | 50 | #2,747 |
| 1998 | 13 | #4,924 | 61 | #2,314 |
| 1997 | 20 | #3,476 | 56 | #2,365 |
| 1996 | 15 | #4,211 | 59 | #2,259 |
| 1995 | 13 | #4,555 | 39 | #2,987 |
| 1994 | 14 | #4,335 | 41 | #2,887 |
| 1993 | 15 | #4,053 | 35 | #3,234 |
| 1992 | 20 | #3,241 | 53 | #2,438 |
| 1991 | 19 | #3,235 | 38 | #2,994 |
| 1990 | 27 | #2,500 | 39 | #2,915 |
| 1989 | 13 | #4,063 | 30 | #3,417 |
| 1988 | 22 | #2,622 | 33 | #3,050 |
| 1987 | 26 | #2,224 | 38 | #2,618 |
| 1986 | 25 | #2,234 | 39 | #2,520 |
| 1985 | 20 | #2,520 | 39 | #2,493 |
| 1984 | 22 | #2,308 | 23 | #3,535 |
| 1983 | 24 | #2,151 | 29 | #2,918 |
| 1982 | 32 | #1,782 | 24 | #3,436 |
| 1981 | 25 | #2,096 | 25 | #3,354 |
| 1980 | 26 | #2,069 | 29 | #3,013 |
| 1979 | 31 | #1,795 | 36 | #2,537 |
| 1978 | 40 | #1,475 | 31 | #2,693 |
| 1977 | 37 | #1,517 | 32 | #2,619 |
| 1976 | 27 | #1,836 | 24 | #3,023 |
| 1975 | 44 | #1,307 | 28 | #2,694 |
| 1974 | 24 | #1,895 | 40 | #2,073 |
| 1973 | 34 | #1,467 | 40 | #2,025 |
| 1972 | 25 | #1,778 | 35 | #2,177 |
| 1971 | 34 | #1,469 | 34 | #2,299 |
| 1970 | 35 | #1,422 | 31 | #2,404 |
| 1969 | 39 | #1,267 | 33 | #2,216 |
| 1968 | 31 | #1,400 | 37 | #1,981 |
| 1967 | 33 | #1,317 | 39 | #1,887 |
| 1966 | 51 | #1,017 | 53 | #1,534 |
| 1965 | 47 | #1,082 | 60 | #1,425 |
| 1964 | 52 | #1,049 | 75 | #1,281 |
| 1963 | 47 | #1,128 | 55 | #1,512 |
| 1962 | 41 | #1,216 | 79 | #1,237 |
| 1961 | 60 | #1,003 | 76 | #1,271 |
| 1960 | 51 | #1,084 | 71 | #1,301 |
| 1959 | 64 | #964 | 94 | #1,106 |
| 1958 | 57 | #1,009 | 98 | #1,062 |
| 1957 | 77 | #853 | 106 | #1,015 |
| 1956 | 91 | #778 | 142 | #830 |
| 1955 | 96 | #747 | 147 | #796 |
| 1954 | 83 | #788 | 143 | #782 |
| 1953 | 106 | #693 | 135 | #794 |
| 1952 | 106 | #673 | 167 | #689 |
| 1951 | 95 | #713 | 133 | #765 |
| 1950 | 100 | #682 | 156 | #686 |
| 1949 | 110 | #656 | 164 | #647 |
| 1948 | 100 | #674 | 168 | #643 |
| 1947 | 141 | #568 | 212 | #584 |
| 1946 | 130 | #562 | 203 | #556 |
| 1945 | 107 | #584 | 182 | #542 |
| 1944 | 117 | #565 | 213 | #494 |
| 1943 | 133 | #543 | 244 | #470 |
| 1942 | 155 | #494 | 277 | #438 |
| 1941 | 138 | #496 | 275 | #414 |
| 1940 | 139 | #495 | 301 | #384 |
| 1939 | 141 | #479 | 312 | #372 |
| 1938 | 178 | #427 | 387 | #318 |
| 1937 | 159 | #442 | 391 | #313 |
| 1936 | 179 | #412 | 350 | #333 |
| 1935 | 167 | #436 | 426 | #291 |
| 1934 | 206 | #381 | 448 | #288 |
| 1933 | 215 | #370 | 417 | #297 |
| 1932 | 200 | #397 | 455 | #294 |
| 1931 | 223 | #375 | 482 | #284 |
| 1930 | 208 | #403 | 515 | #290 |
| 1929 | 198 | #417 | 584 | #263 |
| 1928 | 241 | #377 | 606 | #263 |
| 1927 | 335 | #315 | 662 | #256 |
| 1926 | 280 | #346 | 730 | #240 |
| 1925 | 298 | #334 | 812 | #229 |
| 1924 | 300 | #335 | 909 | #218 |
| 1923 | 314 | #328 | 883 | #216 |
| 1922 | 309 | #329 | 991 | #202 |
| 1921 | 345 | #313 | 992 | #201 |
| 1920 | 350 | #305 | 1,049 | #191 |
| 1919 | 355 | #282 | 1,013 | #190 |
| 1918 | 363 | #279 | 1,009 | #197 |
| 1917 | 313 | #298 | 1,009 | #189 |
| 1916 | 319 | #289 | 1,031 | #180 |
| 1915 | 349 | #258 | 914 | #184 |
| 1914 | 215 | #309 | 672 | #197 |
| 1913 | 145 | #342 | 536 | #199 |
| 1912 | 139 | #311 | 469 | #204 |
| 1911 | 78 | #300 | 358 | #200 |
| 1910 | 72 | #289 | 357 | #190 |
| 1909 | 60 | #293 | 333 | #178 |
| 1908 | 50 | #310 | 290 | #191 |
| 1907 | 56 | #280 | 325 | #171 |
| 1906 | 52 | #273 | 238 | #200 |
| 1905 | 49 | #281 | 248 | #193 |
| 1904 | 40 | #313 | 230 | #195 |
| 1903 | 40 | #297 | 221 | #190 |
| 1902 | 33 | #340 | 198 | #211 |
| 1901 | 26 | #362 | 160 | #229 |
| 1900 | 31 | #404 | 198 | #226 |
| 1899 | 11 | #625 | 132 | #241 |
| 1898 | 15 | #548 | 139 | #253 |
| 1897 | 24 | #384 | 131 | #245 |
| 1896 | 27 | #369 | 134 | #237 |
| 1895 | 19 | #457 | 125 | #252 |
| 1894 | 11 | #637 | 118 | #251 |
| 1893 | 21 | #393 | 122 | #238 |
| 1892 | 16 | #498 | 95 | #273 |
| 1891 | 10 | #610 | 76 | #287 |
| 1890 | 12 | #571 | 81 | #279 |
| 1889 | 7 | #812 | 70 | #283 |
| 1888 | 12 | #583 | 63 | #296 |
| 1887 | 6 | #839 | 37 | #354 |
| 1886 | 8 | #711 | 42 | #328 |
| 1885 | 8 | #713 | 32 | #356 |
| 1884 | 6 | #874 | 30 | #367 |
| 1883 | 0 | – | 26 | #355 |
| 1882 | 0 | – | 18 | #436 |
| 1881 | 0 | – | 23 | #340 |
| 1880 | 5 | #939 | 17 | #406 |
Highest rank
As a boy name, Cleo reached #258 in 1915. As a girl name, it reached #171 in 1907. 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 1920s, with a similar number of babies. They can work as sibling or middle names that feel like they belong together.
Names spelled like Cleo
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.