William vs Kiliam

Baby Name Comparison — 2026

William

Boy #10 Most Popular 3 Syllables

Meaning

"resolute protector, strong-willed guardian"

Origin: Germanic

Cultural Roots

English German French

Quick Stats

Popularity Rank: #10
Total SSA Count: 10,596
Syllables: 3
Formality: Formal

Playground Safety Score

✓ All Clear

Similar Names

Willis Levi Wallace Willard

Full profile for William →

Kiliam

Boy #5,250 Most Popular 3 Syllables

Meaning

"little warrior or little church man"

Origin: Old Irish Cillian

Cultural Roots

Irish French American

Quick Stats

Popularity Rank: #5,250
Total SSA Count: 18
Syllables: 3
Formality: Moderate

Playground Safety Score

✓ All Clear

Similar Names

William Willis Levi Willard

Full profile for Kiliam →

Popularity Comparison

William Rank #10

Kiliam Rank #5,250

William is more popular, ranked #10 vs #5250 for Kiliam.

Frequently Asked Questions

Is William or Kiliam more popular?

William is more popular, ranked #10 compared to Kiliam at #5250 in the United States.

What do William and Kiliam mean?

William means "resolute protector, strong-willed guardian" (Germanic origin). Kiliam means "little warrior or little church man" (Old Irish Cillian origin).

Are William and Kiliam boy or girl names?

William is primarily a boy name. Kiliam is primarily a boy name.

More Comparisons

Kiliam vs William William vs Willis William vs Levi William vs Wallace William vs Willard

← Full profile: William ← Full profile: Kiliam Browse all baby names