Cassidi
- Gender
- Girl
- Say it
- KAS-i-dee
- Origin
- Irish
Cassidi is a girls' name of Irish origin. Too few babies were given it in the latest year to rank.
What does Cassidi mean?
Irish: spelling of Cassidy; from the Irish surname Ó Caiside, perhaps meaning curly-haired
The Ó Caiside family were hereditary physicians to the Maguire chiefs of Fermanagh.
Meaning borrowed from Cassidy. More on Wiktionary.
Is Cassidi a girl's or a boy's name?
Cassidi is a girls' name.
How popular is Cassidi in the US?
No girls in the US were given it in 2025, or too few to be listed. Its busiest year was 1999, with 51 girls. It first appears in the records in 1977.
Half of all the girls named Cassidi in the US since 1880 were born between 1994 and 2006, the years shaded on the chart below.
Cassidi in the US, year by year
| Year | Girls | Rank |
|---|---|---|
| 2020 | 12 | #8,401 |
| 2019 | 10 | #9,730 |
| 2018 | 20 | #6,006 |
| 2017 | 15 | #7,438 |
| 2016 | 11 | #9,408 |
| 2015 | 7 | #13,001 |
| 2014 | 15 | #7,633 |
| 2013 | 15 | #7,744 |
| 2012 | 10 | #10,424 |
| 2011 | 16 | #7,432 |
| 2010 | 16 | #7,510 |
| 2009 | 23 | #5,889 |
| 2008 | 20 | #6,556 |
| 2007 | 10 | #10,814 |
| 2006 | 26 | #5,232 |
| 2005 | 22 | #5,595 |
| 2004 | 22 | #5,551 |
| 2003 | 24 | #5,087 |
| 2002 | 45 | #3,142 |
| 2001 | 33 | #3,860 |
| 2000 | 48 | #2,936 |
| 1999 | 51 | #2,700 |
| 1998 | 33 | #3,570 |
| 1997 | 40 | #2,974 |
| 1996 | 37 | #3,144 |
| 1995 | 32 | #3,417 |
| 1994 | 35 | #3,229 |
| 1993 | 19 | #4,992 |
| 1992 | 13 | #6,645 |
| 1991 | 25 | #4,053 |
| 1990 | 15 | #5,829 |
| 1989 | 10 | #7,443 |
| 1988 | 25 | #3,685 |
| 1987 | 15 | #5,069 |
| 1986 | 16 | #4,721 |
| 1985 | 21 | #3,851 |
| 1984 | 9 | #6,808 |
| 1983 | 14 | #4,883 |
| 1982 | 8 | #7,467 |
| 1981 | 11 | #5,884 |
| 1980 | 0 | – |
| 1979 | 8 | #7,311 |
| 1978 | 0 | – |
| 1977 | 6 | #8,442 |
Nicknames for Cassidi
Names like Cassidi
Names given in the same years and the same naming tradition, with a similar sound.
Teagan, Codi, Mckenna, Devyn, Brynn, Brianna, Keegan, Kennedy, Kennadi, Keeley, Kerrigan, Kiara
Names related to Cassidi
Cassidy, Kassidi, Chassidy, Cassidee, Cassadee, Cassady, Cassidie, Kassidie
More Irish names
Oscar, Rowan, Rory, Maeve, Finn, Aiden, Ryan, Nolan, Quinn, Orla, Cody, Erin, Ronan, Connor, Declan, Casey
Sources
Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Cassidi: name meaning, origin and popularity”, https://www.nameling.co.uk/names/cassidi, updated 20 October 2026.