Skip to content
Name Lineage

    The first name Cassidy

    A girl’s name meaning “descendant of caiside”, “curly-haired”.

    Pronounced /ˈkæsɪdi/ 3 syllables Female Also a surname

    Meaning and origin

    Cassidy means “descendant of caiside”, “curly-haired”.

    From the Irish surname, Anglicized from Ó Caiside (“descendant of Caiside”), from cas (“curly-haired”).

    From Wiktionary (CC BY-SA 4.0).

    Popularity

    Babies registered in England and Wales, 1996–2025

    In 2025, 45 girls were named Cassidy, making it the 807th most popular girls’ name. It peaked in 2010, with 67 births (#586).

    03570 1996200020052010201520202025
    GirlsBoys
    1,756
    babies named Cassidy, 1996–2025
    #807
    rank in 2025
    2010
    peak year

    Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Cassidy with other names.

    Popularity in the United States

    Babies named Cassidy at birth, 1880–2025

    In 2025, 558 girls born in the United States were named Cassidy, the 541st most popular girls’ name that year. It was used most in 1999, when 3,395 were.

    02,0004,000 188018851890189519001905191019151920192519301935194019451950195519601965197019751980198519901995200020052010201520202025
    GirlsBoys
    64,583
    babies named Cassidy since 1880
    #541
    rank in 2025
    1999
    peak year

    US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.

    Nicknames and spellings

    Nicknames for Cassidy

    Other spellings and forms

    • Casady
    • Cassda
    • Casada
    • Cassaday
    • Cassady
    • Cassedy
    • Cassiday
    • Kassidy

    Famous people named Cassidy

    6 on Wikidata, most written-about first

    • Cassidy Freeman
      American actress and singer, born 1982
    • Cassidy Hutchinson
      American political staffer (1996-)
    • Cassidy Rae
      American actress, born 1976
    • Cassidy Gifford
      American actress, born 1993
    • DJ Cassidy
      American DJ and record producer, born 1981
    • Roger Clinton Jr.
      American actor and musician, half brother of former President Bill Clinton, born 1956

    Questions

    What does the name Cassidy mean?
    Cassidy means “descendant of caiside”, “curly-haired”.
    How popular is the name Cassidy?
    In 2025, 45 girls born in England and Wales were named Cassidy, ranking 807th. Its peak was 2010, with 67 births.
    What are nicknames for Cassidy?
    Common nicknames for Cassidy include Cass, Cassie.
    Is Cassidy a boy's or a girl's name?
    Both. Of the 64,583 US babies named Cassidy since 1880, 94% were girls and 6% boys.
    When was Cassidy most popular?
    1999 in the United States, when 3,395 babies were named Cassidy, its highest rank at 99th.
    How do you pronounce Cassidy?
    Cassidy is /ˈkæsɪdi/, 3 syllables.
    What are other spellings of Cassidy?
    Casady, Cassda, Casada, Cassaday, Cassady and Cassedy.
    Is Cassidy also a surname?
    Yes. Cassidy is used as a surname as well as a first name; its surname page has the origin and how many people carry it.