Jacy
Meaning
“A modern coinage, likely from initials J.C. or as an offshoot of Jacey/Jacqueline; coincidentally identical to the unrelated Tupi word for moon.”
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Jacy peaked in the 1990s and the 2010s in nearly equal measure.
See popularity in Brazil
Popularity in Brazil
4,637 people · the #2,891 first name in Brazil · about 1 in 43,478 · median age 66
Among people named Jacy living in Brazil at the 2022 census, more were born in the 1950s than in any other decade.
Source: IBGE, Censo Demográfico 2022
When you meet Jacy
Most people given the name Jacy in the United States were born between 1980 and 2009. The Jacy you meet today is most often in her 20s or 30s.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Jacy deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Jacy truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Jacy fits with your family’s names and surname.
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