Thomas
The story
Thomas is Aramaic, from a word meaning twin, first attached to the apostle who doubted the resurrection until he touched the proof, which is why every language has a doubting Thomas. Few names have gathered so many towering bearers since: Becket, Aquinas, and More in England, then Jefferson and Edison on the American side of the water. Its record in the United States is a study in reliability. It opened the twentieth century near the top, and rather than rising and falling with fashion it simply flattened into one of the steadiest lines in the national data, holding the same comfortable level for the better part of seventy years. Parents keep finding the same things in it: history, gravity, and the friendly escape hatches of Tom and Tommy. The twin, it turns out, is constancy itself.
Thomas's name family
One shared root links 5 names across 2 languages.
Shared root: from Aramaic ta'oma "twin"
The constellation
More branches
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Thomas peaked in the 1890s and the 1900s in nearly equal measure.
Popularity in Brazil
36,052 people · the #724 first name in Brazil · about 1 in 5,618 · median age 8
Among people named Thomas living in Brazil at the 2022 census, more were born in the 2010s than in any other decade.
The census also counted 10,842 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
When you meet Thomas
People given the name Thomas in the United States span the generations: the middle half were born anywhere from 1950 to 1999. 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 Thomas deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Thomas 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 Thomas fits with your family’s names and surname.
Keep exploring
Names like Thomas · Nicknames for Thomas · Saint names for babies and confirmation
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