Cynthia was a hugely popular girls' name that peaked at #7 in 1957 but is far less common today.
Cynthia is predominantly a girl name. In 2025 it ranked #1,014 for girl births in the United States (and #1,937 across all names), given to 247 babies. Cynthia was first reported in SSA data in 1880 and peaked in 1957 (39,340 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 247 | 247 | #1,014 | — |
| 2024 | 331 | 331 | #829 | — |
| 2023 | 308 | 308 | #872 | — |
| 2022 | 315 | 315 | #885 | — |
| 2021 | 346 | 346 | #806 | — |
| 2020 | 308 | 308 | #873 | — |
| 2019 | 378 | 378 | #748 | — |
| 2018 | 419 | 419 | #692 | — |
| 2017 | 462 | 462 | #636 | — |
| 2016 | 552 | 552 | #563 | — |
| 2015 | 580 | 580 | #540 | — |
| 2014 | 636 | 636 | #492 | — |
| 2013 | 601 | 601 | #500 | — |
| 2012 | 750 | 750 | #419 | — |
| 2011 | 733 | 733 | #428 | — |
| 2010 | 835 | 835 | #381 | — |
| 2009 | 893 | 893 | #361 | — |
| 2008 | 1,076 | 1,076 | #310 | — |
| 2007 | 1,234 | 1,234 | #278 | — |
| 2006 | 1,420 | 1,420 | #239 | — |
| 2005 | 1,574 | 1,574 | #221 | — |
| 2004 | 1,521 | 1,521 | #222 | — |
| 2003 | 1,667 | 1,667 | #199 | #11,224 |
| 2002 | 1,839 | 1,847 | #176 | #9,608 |
| 2001 | 1,921 | 1,928 | #169 | — |
| 2000 | 2,038 | 2,046 | #164 | — |
| 1999 | 2,232 | 2,244 | #145 | #8,024 |
| 1998 | 2,638 | 2,658 | #127 | #7,718 |
| 1997 | 2,724 | — | #117 | #5,724 |
| 1996 | 3,198 | — | #101 | #6,622 |
| 1995 | 2,969 | — | #113 | #4,854 |
| 1994 | 3,186 | — | #105 | #2,866 |
| 1993 | 3,403 | — | #95 | #3,270 |
| 1992 | 3,570 | — | #92 | #3,026 |
| 1991 | 3,728 | — | #93 | #3,017 |
| 1990 | 3,823 | — | #88 | #2,562 |
| 1989 | 3,819 | — | #84 | #1,834 |
| 1988 | 3,809 | — | #79 | #2,382 |
| 1987 | 3,422 | — | #84 | #2,025 |
| 1986 | 3,446 | — | #81 | #2,309 |
| 1985 | 4,159 | — | #66 | #1,923 |
| 1984 | 4,652 | — | #62 | #1,851 |
| 1983 | 4,582 | — | #62 | #1,868 |
| 1982 | 4,449 | — | #64 | #2,284 |
| 1981 | 4,876 | — | #59 | #2,697 |
| 1980 | 4,721 | — | #64 | #2,380 |
| 1979 | 4,959 | — | #55 | #1,909 |
| 1978 | 5,426 | — | #50 | #2,081 |
| 1977 | 5,805 | — | #48 | #2,076 |
| 1976 | 6,044 | — | #44 | #1,651 |
| 1975 | 6,575 | — | #40 | #1,481 |
| 1974 | 7,583 | — | #33 | #1,799 |
| 1973 | 8,777 | — | #26 | #1,468 |
| 1972 | 10,211 | — | #25 | #1,366 |
| 1971 | 12,183 | — | #24 | #1,333 |
| 1970 | 12,966 | — | #25 | #1,134 |
| 1969 | 13,566 | — | #23 | #1,099 |
| 1968 | 14,089 | — | #19 | #1,221 |
| 1967 | 15,394 | — | #18 | #986 |
| 1966 | 17,480 | — | #11 | #927 |
| 1965 | 19,300 | — | #9 | #943 |
| 1964 | 20,376 | — | #9 | #1,017 |
| 1963 | 21,640 | — | #10 | #1,071 |
| 1962 | 24,082 | — | #8 | #1,016 |
| 1961 | 24,449 | — | #8 | #1,043 |
| 1960 | 26,774 | — | #9 | #917 |
| 1959 | 30,251 | — | #8 | #956 |
| 1958 | 31,078 | — | #8 | #951 |
| 1957 | 39,416 | — | #7 | #864 |
| 1956 | 32,400 | — | #8 | #958 |
| 1955 | 27,226 | — | #11 | #1,085 |
| 1954 | 27,649 | — | #10 | #1,294 |
| 1953 | 25,171 | — | #12 | #1,361 |
| 1952 | 19,904 | — | #18 | #1,491 |
| 1951 | 16,320 | — | #20 | #1,495 |
| 1950 | 14,477 | — | #23 | #1,320 |
| 1949 | 12,921 | — | #27 | #1,676 |
| 1948 | 12,263 | — | #27 | #1,527 |
| 1947 | 10,556 | — | #33 | #1,456 |
| 1946 | 6,914 | — | #46 | #1,650 |
| 1945 | 3,139 | — | #90 | #2,032 |
| 1944 | 2,575 | — | #105 | #3,527 |
| 1943 | 2,903 | — | #101 | #2,598 |
| 1942 | 2,741 | — | #101 | #1,880 |
| 1941 | 2,301 | — | #112 | #3,610 |
| 1940 | 1,894 | — | #133 | #2,103 |
| 1939 | 1,489 | — | #152 | — |
| 1938 | 1,365 | — | #160 | — |
| 1937 | 1,188 | — | #170 | #2,965 |
| 1936 | 983 | — | #184 | — |
| 1935 | 999 | — | #179 | #2,571 |
| 1934 | 1,029 | — | #179 | #2,786 |
| 1933 | 777 | — | #218 | #3,757 |
| 1932 | 637 | — | #244 | — |
| 1931 | 632 | — | #238 | — |
| 1930 | 596 | — | #256 | — |
| 1929 | 487 | — | #297 | — |
| 1928 | 472 | — | #305 | — |
| 1927 | 432 | — | #324 | — |
| 1926 | 392 | — | #334 | — |
| 1925 | 340 | — | #371 | — |
| 1924 | 366 | — | #358 | — |
| 1923 | 310 | — | #378 | — |
| 1922 | 282 | — | #389 | — |
| 1921 | 295 | — | #389 | — |
| 1920 | 285 | — | #388 | — |
| 1919 | 264 | — | #396 | — |
| 1918 | 271 | — | #398 | — |
| 1917 | 240 | — | #407 | — |
| 1916 | 224 | — | #418 | — |
| 1915 | 216 | — | #405 | — |
| 1914 | 183 | — | #391 | — |
| 1913 | 165 | — | #374 | — |
| 1912 | 157 | — | #367 | — |
| 1911 | 105 | — | #392 | — |
| 1910 | 86 | — | #428 | — |
| 1909 | 76 | — | #421 | — |
| 1908 | 56 | — | #480 | — |
| 1907 | 80 | — | #395 | — |
| 1906 | 77 | — | #392 | — |
| 1905 | 63 | — | #427 | — |
| 1904 | 60 | — | #419 | — |
| 1903 | 65 | — | #394 | — |
| 1902 | 63 | — | #391 | — |
| 1901 | 67 | — | #368 | — |
| 1900 | 87 | — | #360 | — |
| 1899 | 71 | — | #352 | — |
| 1898 | 72 | — | #368 | — |
| 1897 | 80 | — | #328 | — |
| 1896 | 63 | — | #365 | — |
| 1895 | 58 | — | #371 | — |
| 1894 | 58 | — | #368 | — |
| 1893 | 73 | — | #315 | — |
| 1892 | 80 | — | #305 | — |
| 1891 | 67 | — | #306 | — |
| 1890 | 79 | — | #282 | — |
| 1889 | 76 | — | #273 | — |
| 1888 | 58 | — | #314 | — |
| 1887 | 55 | — | #287 | — |
| 1886 | 56 | — | #277 | — |
| 1885 | 59 | — | #259 | — |
| 1884 | 59 | — | #253 | — |
| 1883 | 66 | — | #219 | — |
| 1882 | 45 | — | #259 | — |
| 1881 | 47 | — | #227 | — |
| 1880 | 61 | — | #197 | — |