Cassio vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Cassio Rank #11,796
Theodore Rank #4

Theodore is more popular, ranked #4 vs #11796 for Cassio.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cassio ___

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 Cassio

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 Cassio or Theodore more popular?

Theodore is more popular, ranked #4 compared to Cassio at #11796 in the United States.

What do Cassio and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Cassio and Theodore boy or girl names?

Cassio is primarily a boy name. Theodore is primarily a boy name.

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