AgeName

Lucas vs. Lukas: which name is older?

The average Lucas is 18 and the average Lukas is 16, so Lucas is the older name, by about 1 year.

Lucas and Lukas sound alike, so the spelling is the clue: a Lucas is more likely to have been born in the late 2010s, and a Lukas in the late 2010s.

Lucas

Average age
18
Median age
14
Estimated alive
324K
Peak year
2017

Lukas

Average age
16
Median age
15
Estimated alive
43.4K
Peak year
2019

When was each name popular?

Lucas peaked first, in 2017 (in the late 2010s). Lukas peaked in 2019, 2 years later.

Estimated living people with each name, by the year they were born.

Which name is more common?

There are about 320,000 Lucases and about 43,000 Lukases alive in the US, so there are about 7 times as many Lucases as Lukases.

Boys or girls?

Both are boys' names: over 99% of living Lucases and 100% of living Lukases are men.

Names the same age as Lucas

Names the same age as Lukas

More comparisons: Lucas vs. Luke

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Lucas or Lukas: questions

Which is older, Lucas or Lukas?

The average Lucas is 18 and the average Lukas is 16, so Lucas is the older name, by about 1 year.

How old is the average Lucas?

The average Lucas in the US is 18; half of all living Lucases are between 8 and 24.

How old is the average Lukas?

The average Lukas in the US is 16; half of all living Lukases are between 8 and 22.

Which is more common, Lucas or Lukas?

There are about 320,000 Lucases and about 43,000 Lukases alive in the US, so there are about 7 times as many Lucases as Lukases.

Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). How we calculate this