Cassidie

Q: What does Cassidie mean?

Cassidie is a girls' name of Irish origin, 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.

Gender: Girl
Say it: KAS-i-dee
Origin: Irish

Cassidie is a girls' name of Irish origin. Too few babies were given it in the latest year to rank.

What does Cassidie 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 Cassidie a girl's or a boy's name?

Cassidie is a girls' name.

How popular is Cassidie in the US?

No girls in the US were given it in 2025, or too few to be listed. Its busiest year was 1998, with 31 girls. It first appears in the records in 1981.

Half of all the girls named Cassidie in the US since 1880 were born between 1996 and 2006, the years shaded on the chart below.

1981Busiest: 31 in 19982017

Cassidie in the US, year by year

Year	Girls	Rank
2017	8	#11,611
2016	9	#10,855
2015	10	#10,143
2014	5	#16,507
2013	9	#10,995
2012	8	#12,193
2011	7	#13,339
2010	8	#12,270
2009	13	#8,884
2008	13	#8,961
2007	17	#7,390
2006	15	#7,865
2005	21	#5,795
2004	17	#6,763
2003	25	#4,938
2002	22	#5,250
2001	24	#4,829
2000	19	#5,700
1999	29	#3,966
1998	31	#3,727
1997	15	#6,158
1996	25	#4,179
1995	23	#4,343
1994	15	#5,978
1993	15	#5,949
1992	10	#8,057
1991	5	#13,139
1990	13	#6,459
1989	0	–
1988	7	#9,239
1987	0	–
1986	0	–
1985	8	#7,560
1984	7	#8,149
1983	6	#9,013
1982	0	–
1981	5	#10,409