Cai vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Cai Rank #1,906
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1906 for Cai.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cai ___

  • Cai James
  • Cai River
  • Cai Alexander
  • Cai Thomas
  • Cai Owen
  • Cai Finn

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 Cai

Nia Rhys Lena Beau Seren

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Cai or Theodore more popular?

Theodore is more popular, ranked #4 compared to Cai at #1906 in the United States.

What do Cai and Theodore mean?

Cai means "rejoice, delight" (Latin via Welsh origin). Theodore means "divine gift" (Greek origin).

Are Cai and Theodore boy or girl names?

Cai is primarily a boy name. Theodore is primarily a boy name.

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