Oneil vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Oneil Rank #12,528
Theodore Rank #4

Theodore is more popular, ranked #4 vs #12528 for Oneil.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Oneil ___

No pairings available yet.

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Oneil

No sibling data available yet.

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Oneil or Theodore more popular?

Theodore is more popular, ranked #4 compared to Oneil at #12528 in the United States.

What do Oneil and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Oneil and Theodore boy or girl names?

Oneil is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Oneil Oneil vs Esquire Oneil vs Ringo Oneil vs Jerud Oneil vs Avren
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