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Jacy
Pronounced JAY-see /ΛdΚeΙͺ.si/High
Meaning: Variously the Tupi-Guarani Jacy/Jaci, 'the moon' (a moon deity), and a modern name from the initials J.C.; used for both sexes; here for girls; routes uncertainLow
Popularity in the U.S. Β· SSA data
U.S. births per year (Social Security Administration, 1880βpresent). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Jacy is variously the Tupi-Guarani Jaci, 'the moon' (a moon deity in Brazilian Indigenous myth), and a modern name formed from the initials J.C. (routes uncertain, which we flag honestly). A crisp, breezy name, used for both sexes, here for girls (slug not needed β leans girls; nickname Jace).
It registers thinly in records. Rare, the-moon-or-a-J-C-name at the (uncertain) root, and breezy.
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Frequently Asked
What does the name Jacy mean?
Jacy is variously Tupi 'the moon' and a modern J.C. initials-name; the routes are uncertain, so we flag it.
How do you pronounce Jacy?
It's said JAY-see /ΛdΚeΙͺ.si/ β two syllables, stress on the first.
Is Jacy a boy or girl name?
Jacy is used for both sexes; this page covers its use as a girl's name.
How popular is Jacy?
Jacy is a rare name in the U.S.