Meaning not yet researched.
Cassidy: US girls given the name each year, 1880 to 2025, from Social Security card applications. 558 in 2025. Its best rank was #99 in 1999.
US births per year · SSA card applications
Peaked at #99 in 1999; #541 in 2025. About 92% of babies named Cassidy in 2025 were girls.
Baby name · US data 1880–2025
#541 for US girls in 2025. Its best year was 1999, at #99.
Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.
Cassidy: US girls given the name each year from 1880 to 2025. 558 girls in 2025. Peak: #99 in 1999 · most girls in one year: 3,395 (1999).
In 2025, 558 US girls were named Cassidy, making it the 541st most common girls’ name of the year, down 63 places from #478 in 2024. That is 88 fewer than the 646 girls named Cassidy in 2024. Its best rank for girls was #99, reached in 1999. That year also had the most girls given the name: 3,395. For comparison, it was #257 in 2015 and unranked in 1950.
Social Security card records list Cassidy in 58 years of the 146 from 1880 to 2025, starting in 1968 with 5 babies. In all, 64,583 US babies have been given the name, 94% of them girls and 5.8% boys. Its busiest decade was the 2000s, with 21,661 babies named Cassidy.
Over the 10 years from 2016 to 2025, 7,765 US girls were named Cassidy; the busiest of those years was 2016, with 1,123. In 2025 that was about 1 in 2,880 of the girls in SSA’s list for the year.
Among the states, Cassidy ranked highest in Pennsylvania in 2025, at #295 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Kassidy (21,715 babies since 1880) and Cassady (1,172 babies since 1880). Rarer spellings such as Kassidi, Cassidi and Cassidee are summarised on this page. The open nickname list we use links it to Cass and Cassie.
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
Wikidata records this spelling as a given name in English and Irish. That is where the name is used, not necessarily where it comes from.
Rare spellings summarised here: Kassidi (1,241), Cassidi (863), Cassidee (783), Kasidy (612), Cassidie (464), Casidy (347), Kassady (294), Cassadi (108), Cassidey (74), Casady (61), Cassedy (39), Kassidey (28), and more.
Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.
US girls. Rank within each state. SSA leaves out states where fewer than five girls got the name, so 21 are not listed.
| State | Births 2025 | Rank 2025 | Rank 2015 |
|---|---|---|---|
| Pennsylvania | 37 | #295 | #158 |
| Colorado | 19 | #321 | #177 |
| New Jersey | 23 | #353 | #187 |
| Michigan | 23 | #375 | #216 |
| Virginia | 19 | #416 | #190 |
| Massachusetts | 13 | #422 | #225 |
| Louisiana | 10 | #440 | #318 |
| Nevada | 6 | #446 | #377 |
| North Carolina | 24 | #455 | #188 |
| Maryland | 11 | #469 | #176 |
| California | 70 | #481 | #271 |
| Connecticut | 6 | #482 | #157 |
| Arizona | 14 | #485 | #368 |
| Alabama | 10 | #489 | #220 |
| Utah | 8 | #498 | #404 |
| Arkansas | 6 | #501 | #519 |
| Wisconsin | 9 | #526 | #398 |
| Georgia | 21 | #533 | #237 |
| Ohio | 19 | #537 | #297 |
| Mississippi | 5 | #541 | #278 |
| New York | 29 | #568 | #285 |
| Iowa | 5 | #586 | #426 |
| Washington | 11 | #595 | #305 |
| Minnesota | 8 | #610 | #430 |
| Texas | 49 | #634 | #372 |
| Missouri | 8 | #653 | #400 |
| Tennessee | 11 | #657 | #354 |
| Illinois | 14 | #677 | #336 |
| Indiana | 8 | #740 | #450 |
| Florida | 18 | #875 | #252 |
Births and national rank for each year SSA lists the name, newest first.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | 558 | #541 | 51 | #2,575 |
| 2024 | 646 | #478 | 61 | #2,317 |
| 2023 | 620 | #495 | 55 | #2,445 |
| 2022 | 661 | #478 | 49 | #2,682 |
| 2021 | 655 | #478 | 43 | #2,871 |
| 2020 | 765 | #411 | 45 | #2,735 |
| 2019 | 865 | #368 | 55 | #2,430 |
| 2018 | 869 | #361 | 76 | #1,939 |
| 2017 | 1,003 | #326 | 70 | #2,020 |
| 2016 | 1,123 | #289 | 59 | #2,258 |
| 2015 | 1,236 | #257 | 42 | #2,817 |
| 2014 | 1,311 | #247 | 45 | #2,671 |
| 2013 | 1,276 | #250 | 55 | #2,306 |
| 2012 | 1,140 | #280 | 50 | #2,497 |
| 2011 | 1,126 | #282 | 50 | #2,481 |
| 2010 | 1,286 | #251 | 51 | #2,435 |
| 2009 | 1,360 | #244 | 55 | #2,354 |
| 2008 | 1,491 | #228 | 66 | #2,092 |
| 2007 | 1,657 | #207 | 53 | #2,418 |
| 2006 | 1,771 | #199 | 69 | #1,949 |
| 2005 | 1,833 | #189 | 40 | #2,713 |
| 2004 | 2,007 | #168 | 59 | #2,025 |
| 2003 | 2,235 | #150 | 24 | #3,641 |
| 2002 | 2,634 | #131 | 34 | #2,766 |
| 2001 | 3,029 | #107 | 39 | #2,494 |
| 2000 | 3,163 | #107 | 42 | #2,302 |
| 1999 | 3,395 | #99 | 54 | #1,826 |
| 1998 | 3,045 | #113 | 57 | #1,770 |
| 1997 | 3,143 | #105 | 55 | #1,756 |
| 1996 | 2,844 | #109 | 78 | #1,371 |
| 1995 | 3,042 | #108 | 87 | #1,246 |
| 1994 | 2,306 | #139 | 114 | #1,041 |
| 1993 | 1,028 | #267 | 109 | #1,061 |
| 1992 | 725 | #355 | 119 | #991 |
| 1991 | 610 | #418 | 102 | #1,077 |
| 1990 | 521 | #471 | 125 | #923 |
| 1989 | 482 | #487 | 124 | #911 |
| 1988 | 405 | #538 | 116 | #884 |
| 1987 | 396 | #521 | 120 | #852 |
| 1986 | 371 | #546 | 101 | #912 |
| 1985 | 416 | #491 | 151 | #719 |
| 1984 | 406 | #492 | 169 | #665 |
| 1983 | 358 | #530 | 163 | #669 |
| 1982 | 219 | #756 | 68 | #1,107 |
| 1981 | 157 | #943 | 60 | #1,188 |
| 1980 | 131 | #1,077 | 64 | #1,135 |
| 1979 | 108 | #1,205 | 41 | #1,466 |
| 1978 | 102 | #1,222 | 45 | #1,372 |
| 1977 | 72 | #1,516 | 53 | #1,211 |
| 1976 | 62 | #1,602 | 52 | #1,192 |
| 1975 | 54 | #1,732 | 32 | #1,596 |
| 1974 | 36 | #2,219 | 42 | #1,314 |
| 1973 | 28 | #2,576 | 25 | #1,786 |
| 1972 | 32 | #2,313 | 22 | #1,936 |
| 1971 | 17 | #3,666 | 26 | #1,749 |
| 1970 | 12 | #4,529 | 13 | #2,641 |
| 1969 | 5 | #7,620 | 5 | #4,485 |
| 1968 | — | — | 5 | #4,216 |
About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).