Lucas
Meaning
man from Lucania (a region of southern Italy); Greek Loukas is a shortened form of Loukanos, "from Lucania"; the "light" link is a secondary folk association (via Lucania's own possible root), not the established meaning
The story
Lucas is the Latin form behind Luke, and its root is geographic: the Greek Loukas shortened Loukanos, a man from Lucania, the rugged region of southern Italy. The link to light that many baby books offer is a later folk association, not the established meaning, though it does no harm to the name's glow. Luke the Evangelist, traditionally a physician and the author of the third Gospel, carried the form across Christendom, and Lucas has remained the standard version in Dutch, Spanish, Portuguese, and Scandinavian use. Its American chart is strikingly modern: quiet in the records through the century's first half, it began climbing in the 1970s and rose almost vertically into the top tier, where the 2010s and 2020s sit level at its peak. Friendly in full and even friendlier as Luke, it shows no sign of coming down.
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Lucas peaked in the 2010s and the 2020s in nearly equal measure.
Popularity in Brazil
1,341,525 people · the #9 first name in Brazil · about 1 in 151 · median age 20
Among people named Lucas living in Brazil at the 2022 census, roughly as many were born in the 1990s as in the 2000s, more than in any other decade.
The census also counted 83,919 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
When you meet Lucas
Most people given the name Lucas 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 Lucas deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Lucas 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 Lucas fits with your family’s names and surname.
Where Lucas travels
Castilian · a current Spain top-5 boys' name
Scandinavian · from Lucania, a region of southern Italy (popular across Scandinavia and the US)
Global crossover · France's most popular boys' name through much of the 2000s and now a top-10 US and Brazilian favorite
Keep exploring
Names like Lucas · Middle names for Lucas · Spanish baby names from Spain · Scandinavian baby names · Global crossover names
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