Theodore vs Union

Baby Name Comparison — 2026

Union

Boy #32,512 Most Popular 2 Syllables

Meaning

"the act of joining together, unity, oneness"

Origin: Latin unio (oneness)

Cultural Roots

American

Quick Stats

Popularity Rank
#32,512
Total SSA Count
5
Syllables
2
Formality
Casual
Nicknames
Uni, Uni-bear

Playground Safety Score

✓ All Clear
Full profile for Union →

Popularity Comparison

Theodore Rank #4
Union Rank #32,512

Theodore is more popular, ranked #4 vs #32512 for Union.

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

Union ___

  • Union James
  • Union Miles
  • Union Cole
  • Union Everett
  • Union Stone

Sibling Name Ideas

Names that pair well as siblings.

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

If you choose Union

Liberty Justice Valor Honor True

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 Union more popular?

Theodore is more popular, ranked #4 compared to Union at #32512 in the United States.

What do Theodore and Union mean?

Theodore means "divine gift" (Greek origin). Union means "the act of joining together, unity, oneness" (Latin unio (oneness) origin).

Are Theodore and Union boy or girl names?

Theodore is primarily a boy name. Union is primarily a boy name.

More Comparisons

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