MallowbyNames

Kassidee

KASS-uh-dee · Invented name, likely a respelling of Cassidy, which is an Irish surname meaning 'curly-headed'.

Peak popularity
2001
Usually for
Girls
Trend
Declining since 2013

Declining since 2013.

Popularity of Kassidee since 1989

Babies named Kassidee per year in U.S. Social Security records.

1224361990200020102020Most births 2001Girls
Data table (by decade)
DecadeGirls
1980s5
1990s134
2000s262
2010s228
2020s28

Meaning & origin

Kassidee is a modern invented spelling of Cassidy, an Irish surname turned given name. It first appeared in U.S. records in 1989, and while it never entered the top 1,000, it saw its peak usage in 2001. Since 2013, its use has been steadily declining. The spelling with 'K' and 'ee' reflects a broader American trend of phonetic surname respellings that gained popularity in the 1990s and 2000s. Like many such invented names, Kassidee has no recorded top state concentrations and remains a rare but recognizable choice.

Kassidee is a modern invented spelling of the Irish surname Cassidy, derived from Gaelic "Ó Caiside" meaning 'descendant of Caiside', a personal name thought to mean 'curly-headed' or 'curly-haired'. The creative spelling with 'K' and 'ee' arose in the United States in the late 20th century, reflecting a trend toward unique phonetic respellings.

Nicknames & variants

Nicknames: Kassie, Kassi, Kass, Sid, Dee

Variants: Cassidy, Cassadie, Cassidee, Kassidy, Kassadie

Sibling names for Kassidee

Names that share Kassidee's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

K is for Kassidee, our favorite little girl.

K is for Kassidee…”

In a Mallowby alphabet book, Kassidee's letter becomes Kassidee's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Kassidee's book

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Questions parents ask

What does the name Kassidee mean?
Kassidee is a modern invented spelling typically associated with the Irish surname Cassidy, which means 'curly-headed' or 'descendant of Caiside'.
How popular is the name Kassidee?
Kassidee has never ranked among the top 1,000 names in the United States. It first appeared in 1989, peaked in use in 2001, and has been declining in popularity since 2013.
Is Kassidee a boy or girl name?
Kassidee is almost exclusively used for girls, though it is derived from the unisex surname Cassidy.