Knox vs Lucas

Baby Name Comparison — 2026

Knox

Boy #209 Most Popular 1 Syllable

Meaning

"round hill"

Origin: Old English/Scottish

Cultural Roots

American Scottish English

Quick Stats

Popularity Rank
#209
Total SSA Count
1,701
Syllables
1
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Knox →

Lucas

Boy #9 Most Popular 2 Syllables

Meaning

"from Lucania"

Origin: Latin

Cultural Roots

English Spanish Portuguese

Quick Stats

Popularity Rank
#9
Total SSA Count
10,703
Syllables
2
Formality
Moderate
Nicknames
Luke, Luc

Playground Safety Score

✓ All Clear
Full profile for Lucas →

Popularity Comparison

Knox Rank #209
Lucas Rank #9

Lucas is more popular, ranked #9 vs #209 for Knox.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Knox ___

  • Knox James
  • Knox Oliver
  • Knox William
  • Knox Henry
  • Knox Alexander
  • Knox Reid

Lucas ___

  • Lucas James
  • Lucas Alexander
  • Lucas Thomas
  • Lucas William
  • Lucas Henry
  • Lucas Oliver

Sibling Name Ideas

Names that pair well as siblings.

If you choose Knox

Ryder Lennox Jagger Saylor Piper

If you choose Lucas

Olivia Emma Sophia Liam Noah

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Knox or Lucas more popular?

Lucas is more popular, ranked #9 compared to Knox at #209 in the United States.

What do Knox and Lucas mean?

Knox means "round hill" (Old English/Scottish origin). Lucas means "from Lucania" (Latin origin).

Are Knox and Lucas boy or girl names?

Knox is primarily a boy name. Lucas is primarily a boy name.

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← Full profile: Knox ← Full profile: Lucas Browse all baby names