William vs Theodore

Baby Name Comparison — 2026

William

Boy #10 Most Popular 3 Syllables

"resolute protector, strong-willed guardian"

Origin: Germanic

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Boy #4 Most Popular 3 Syllables

"divine gift"

Origin: Greek

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William Rank #10

Theodore Rank #4

Theodore is more popular, ranked #4 vs #10 for William.

Is William or Theodore more popular?

Theodore is more popular, ranked #4 compared to William at #10 in the United States.

What do William and Theodore mean?

William means "resolute protector, strong-willed guardian" (Germanic origin). Theodore means "divine gift" (Greek origin).

Are William and Theodore boy or girl names?

William is primarily a boy name. Theodore is primarily a boy name.