Isa
Meaning
short form of Isabel/Isabella, meaning 'God is my oath'
The formal names behind Isa
Isa is an established short form of this name.
Isabella · Hebrew origin · "God is my oath," as the medieval form of Elizabeth that Spain, Portugal, and Italy made their own; the name of queens from Castile to England, and a four-syllable classic that softens to Bella, Izzy, and Isa
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Isa peaked in the 2020s.
See popularity in Brazil
Popularity in Brazil
16,651 people · the #1,198 first name in Brazil · about 1 in 12,195 · median age 23
Among people named Isa living in Brazil at the 2022 census, more were born in the 2010s than in any other decade.
The census also counted 2,868 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
When you meet Isa
Most people given the name Isa in the United States are children or teenagers today. The name belongs to this generation.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Isa deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Isa 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 Isa fits with your family’s names and surname.
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