Given name & surname

Cacy

“vigilant, wakeful”·“a vigilant woman”·“one who is alert; watchful”

Cacy is a variant of Casey. Interpretations include “vigilant, wakeful” (Irish), “a vigilant woman” (Irish), and “one who is alert; watchful”. These may reflect different naming traditions.

Meaning & origin

What it means

Cacy is a variant of Casey. Interpretations include “vigilant, wakeful” (Irish), “a vigilant woman” (Irish), and “one who is alert; watchful”. These may reflect different naming traditions.

Explained through its name family

Where it comes from

Cacy is a variant of Casey. An origin associated with Casey is Irish.

Explained through its name family

The story

Published U.S. birth records include this spelling as early as 1975. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Cacy through the years

Babies since 1880
52
0 boys · 52 girls
Most popular year
1979
7 babies
2025
0
Outside the ranked list
2021–25 vs 2016–20
—
Too few births to compare
0246198020002025Highest share 19790.0
Cacy in U.S. Social Security birth records, 1975–2025, per million girls born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

The most recent published U.S. birth count for girls is 6 in 2001. Later missing counts do not mean the name went unused. Published U.S. population figures for this spelling include 184 as a first name in 2020; 312 as a surname in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Cacy’s family of names

Cacy has a related form in Casey.

Walk Cacy’s family in the name graph

CacyCaseyKacy

Inner ring: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 1

Diminutives, pet forms, short forms and variants used alongside the name.

Across languages 1

Equivalents and cognates in other languages, plus older forms it grew from.

Similar names

If you love Cacy, these share its style, era, origin or sound, from outside its own family.

Hindi

Kami

“a loving man”

31RareSteady

5% boys · 95% girls

Mohawk

Kateri

Kateri is a feminine given name from Mohawk. It is used in French.

27RareEasing

>99% girls

Modern

Kaci

“a vigilant man; one who is alert” · “a vigilant woman”

39RareEasing

7% boys · 93% girls

Norse · Royal

Kari

“of the wind” · “one with curly hair”

41UncommonSteady

20% boys · 80% girls

Nature

Carrie

“a joyous song; a small, strong woman” · “from the river”

34RareCooling

>99% girls

Literary

Darci

“a dark beauty” · “having dark features”

26RareSteady

>99% girls

Royal

Candice

“a queen” · “one who is white and glowing”

25RareCooling

>99% girls

Royal

Katy

“one who is pure; virginal”

34RareEasing

>99% girls

Sibling ideas

Names that share Cacy’s feel without repeating its first letter or rhyming with it.

A brother for Cacy

A sister for Cacy