Cylus vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Cylus Rank #3,882
Theodore Rank #4

Theodore is more popular, ranked #4 vs #3882 for Cylus.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cylus ___

  • Cylus James
  • Cylus Alexander
  • Cylus Reid
  • Cylus Thomas
  • Cylus Cole
  • Cylus Grant

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 Cylus

Silas Cyrus Atlas Juno Lyra

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 Cylus or Theodore more popular?

Theodore is more popular, ranked #4 compared to Cylus at #3882 in the United States.

What do Cylus and Theodore mean?

Cylus means "man of the forest" (Latin origin). Theodore means "divine gift" (Greek origin).

Are Cylus and Theodore boy or girl names?

Cylus is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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← Full profile: Cylus ← Full profile: Theodore Browse all baby names