Theodore vs Trillian

Baby Name Comparison — 2026

Theodore

Boy #4 Most Popular 3 Syllables

Meaning

"divine gift"

Origin: Greek

Cultural Roots

English French Greek

Quick Stats

Popularity Rank: #4
Total SSA Count: 12,011
Syllables: 3
Formality: Formal
Nicknames: Theo, Teddy, Ted

Playground Safety Score

✓ All Clear

Similar Names

Kayden Zayden Greyson Andres

Full profile for Theodore →

Trillian

Girl #26,695 Most Popular

Quick Stats

Popularity Rank: #26,695
Total SSA Count: 6
Nicknames: Tri, Tril, Trily

Playground Safety Score

✓ All Clear

Similar Names

Temmy Khamyra Cynne Aleyla

Full profile for Trillian →

Popularity Comparison

Theodore Rank #4

Trillian Rank #26,695

Theodore is more popular, ranked #4 vs #26695 for Trillian.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Theodore ___

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

Trillian ___

No pairings available yet.

Sibling Name Ideas

Names that pair well as siblings.

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

If you choose Trillian

No sibling data available yet.

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 Theodore or Trillian more popular?

Theodore is more popular, ranked #4 compared to Trillian at #26695 in the United States.

What do Theodore and Trillian mean?

Theodore means "divine gift" (Greek origin).

Are Theodore and Trillian boy or girl names?

Theodore is primarily a boy name. Trillian is primarily a girl name.

More Comparisons

Trillian vs Theodore Theodore vs Kayden Theodore vs Zayden Theodore vs Greyson Theodore vs Andres

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