Arnaldo
Meaning
eagle power (Portuguese form of the German Arnold)
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Arnaldo has stayed rare in US records the whole time: no peak decade to name.
Popularity in Brazil
64,854 people · the #471 first name in Brazil · about 1 in 3,135 · median age 55
Among people named Arnaldo living in Brazil at the 2022 census, more were born in the 1960s than in any other decade.
The census also counted 206 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
When you meet Arnaldo
Most people given the name Arnaldo in the United States were born between 1970 and 1999. The Arnaldo you meet today is most often in his 30s or 40s.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Arnaldo deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Arnaldo 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 Arnaldo fits with your family’s names and surname.
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