Jeferson vs Killiam

Baby Name Comparison — 2026

Jeferson

Boy #5,655 Most Popular 3 Syllables

Meaning

"son of Jeffrey, son of peace"

Origin: English

Cultural Roots

American English Brazilian Hispanic

Quick Stats

Popularity Rank
#5,655
Total SSA Count
17
Syllables
3
Formality
Moderate
Nicknames
Jeff, Jef

Playground Safety Score

✓ All Clear
Full profile for Jeferson →

Killiam

Boy #5,792 Most Popular 3 Syllables

Meaning

"little churchman, associated with the church"

Origin: Old Irish ceall + diminutive

Cultural Roots

Irish American

Quick Stats

Popularity Rank
#5,792
Total SSA Count
16
Syllables
3
Formality
Moderate
Nicknames
Kill, Liam, Killy

Playground Safety Score

✓ All Clear
Full profile for Killiam →

Popularity Comparison

Jeferson Rank #5,655
Killiam Rank #5,792

Jeferson is more popular, ranked #5655 vs #5792 for Killiam.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Jeferson ___

  • Jeferson Lee
  • Jeferson James
  • Jeferson Michael
  • Jeferson David
  • Jeferson Anthony
  • Jeferson Luis

Killiam ___

  • Killiam James
  • Killiam Patrick
  • Killiam Michael
  • Killiam Sean
  • Killiam Finn
  • Killiam Cole

Sibling Name Ideas

Names that pair well as siblings.

If you choose Jeferson

Madison Lincoln Monroe Jackson Kennedy

If you choose Killiam

Declan Finn Ronan Saoirse Niamh

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 Jeferson or Killiam more popular?

Jeferson is more popular, ranked #5655 compared to Killiam at #5792 in the United States.

What do Jeferson and Killiam mean?

Jeferson means "son of Jeffrey, son of peace" (English origin). Killiam means "little churchman, associated with the church" (Old Irish ceall + diminutive origin).

Are Jeferson and Killiam boy or girl names?

Jeferson is primarily a boy name. Killiam is primarily a boy name.

More Comparisons

Killiam vs Jeferson Jeferson vs Dawit Jeferson vs Ryne Jeferson vs Akhil Jeferson vs Gemini
← Full profile: Jeferson ← Full profile: Killiam Browse all baby names