MallowbyNames

Keysi

KAY-see · of uncertain origin; possibly an invented name or a variant of Kaci or Casey

2025 rank (girls)
#4,546
Babies named in 2025
30
Peak popularity
2025
2025 frequency
1 in 53,576 girls
Usually for
Girls
Trend
Rising since 2005

Rising since 2005, #4,546 for girls today.

Popularity of Keysi since 1998

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

102030200020102020Most births 2025Girls
Data table (by decade)
DecadeGirls
1990s5
2000s63
2010s160
2020s137

Meaning & origin

Keysi is a modern invented name that first appeared on U.S. birth records in 1998. Its rise in use has been particularly notable since 2005, and by 2025 it reached its peak rank of 4546, with approximately 1 in 53576 newborns given the name. The name is most frequently recorded in Texas, suggesting regional popularity in the American South. Keysi's appeal likely lies in its trendy sound, combining the popular 'Key- prefix with a diminutive ending. While its exact meaning is unclear, it fits a pattern of contemporary girl names that emphasize individuality and phonetic creativity.

Keysi appears to be a modern invented name, first recorded in the United States in 1998. It may be a creative respelling of names like Kaci or Casey, or formed from the fashionable elements 'Key' and the diminutive '-si' suffix. The name has seen increasing use since the mid-2000s.

Where Keysi is most popular

Births per 100,000 girls by state, 2025. The lightest shade means too few recorded births.

Nicknames & variants

Nicknames: Key, Si

Variants: Keysie, Keisi, Keisy

Sibling names for Keysi

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

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

K is for Keysi, our favorite little girl.

K is for Keysi…”

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

Make Keysi's book

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

Questions parents ask

What does the name Keysi mean?
Keysi is a modern invented name; its exact meaning is uncertain. It may be a variant of Kaci or Casey.
How popular is Keysi?
In 2025, Keysi ranked 4546 in the United States, with about 1 in 53576 newborns receiving the name.
Is Keysi a boy's or girl's name?
Keysi is predominantly used as a girl's name.