MallowbyNames

Kaisey

KAY-see · of uncertain origin; possibly a modern respelling of Casey or Kasey, derived from an Irish surname meaning 'vigilant' or 'watchful'.

2025 rank (girls)
#8,362
Babies named in 2025
12
Peak popularity
2023
2025 frequency
1 in 133,939 girls
Usually for
Girls
Trend
Holding steady

Holding steady, #8,362 for girls today.

Popularity of Kaisey since 1990

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

510151990200020102020Most births 2023Girls
Data table (by decade)
DecadeGirls
1990s41
2000s31
2010s57
2020s67

Meaning & origin

Kaisey is a modern invented spelling that first appeared in U.S. records in 1990. The name has remained stable in usage, with its peak in 2023 at rank 8,362. Its similarity to the established names Casey and Kasey gives it a familiar sound while allowing for a unique spelling. The name's trajectory suggests it has maintained a consistent, if niche, level of popularity since the 1990s. While not among the top 1,000 names, Kaisey offers a distinctive choice for parents seeking a creative spin on a classic. The name is most commonly used for girls and has no strong regional ties.

Kaisey appears to be a modern invented spelling, likely a variant of the name Casey or Kasey. Casey originates from an Irish surname, Ó Cathasaigh, meaning 'descendant of Cathasach', a personal name derived from 'cath' meaning 'battle' and 'vigilant'. Kaisey as a given name is a relatively recent coinage, first recorded in the United States in the 1990s, and has seen modest usage.

Nicknames & variants

Nicknames: Kay, Case

Variants: Kasey, Casey, Kacie, K.C.

Sibling names for Kaisey

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

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

K is for Kaisey, our favorite little girl.

K is for Kaisey…”

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

Make Kaisey's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Kaisey mean?
Kaisey is likely a modern respelling of Casey or Kasey, which derives from an Irish surname meaning 'vigilant' or 'watchful'.
How popular is the name Kaisey currently?
In 2025, Kaisey ranked 8,362 in the United States, meaning it is relatively rare, with about 1 in every 133,939 newborns given the name.
Is Kaisey typically a boy's or girl's name?
Kaisey is most commonly used as a girl's name in the United States.