Thaddeus
Meaning
biblical name traditionally translated as 'courageous heart'
Honoring Tadeusz Kościuszko, engineer hero of the American Revolution.
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Thaddeus peaked in the 2010s and the 2020s in nearly equal measure.
When you meet Thaddeus
People given the name Thaddeus in the United States span the generations: the middle half were born anywhere from 1960 to 2019. Age is the one thing the name won't tell you.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Thaddeus deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Thaddeus 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 Thaddeus fits with your family’s names and surname.
Where Thaddeus travels
Polish · A documented choice in Polish families.
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