Illiam vs Oliver

Baby Name Comparison — 2026

Popularity Comparison

Illiam Rank #23,620
Oliver Rank #3

Oliver is more popular, ranked #3 vs #23620 for Illiam.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Illiam ___

No pairings available yet.

Oliver ___

  • Oliver James
  • Oliver Thomas
  • Oliver William
  • Oliver Henry
  • Oliver John
  • Oliver Benjamin

Sibling Name Ideas

Names that pair well as siblings.

If you choose Illiam

No sibling data available yet.

If you choose Oliver

Olivia Charlotte Emma Sophia Amelia

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Illiam or Oliver more popular?

Oliver is more popular, ranked #3 compared to Illiam at #23620 in the United States.

What do Illiam and Oliver mean?

Oliver means "olive tree" (Latin origin).

Are Illiam and Oliver boy or girl names?

Illiam is primarily a boy name. Oliver is primarily a boy name.

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