Mannix vs Theodore

Baby Name Comparison — 2026

Mannix

Boy #9,942 Most Popular 2 Syllables

Meaning

"son of the monk, son of the devoted one"

Origin: Irish Gaelic (Mac Maonach)

Cultural Roots

Irish Irish-American Australian

Quick Stats

Popularity Rank
#9,942
Total SSA Count
9
Syllables
2
Formality
Casual
Nicknames
Manny, Max

Playground Safety Score

✓ All Clear
Full profile for Mannix →

Popularity Comparison

Mannix Rank #9,942
Theodore Rank #4

Theodore is more popular, ranked #4 vs #9942 for Mannix.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Mannix ___

  • Mannix James
  • Mannix Patrick
  • Mannix Ryan
  • Mannix Lee
  • Mannix Thomas

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 Mannix

Declan Cillian Fionn Aisling Sorcha

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 Mannix or Theodore more popular?

Theodore is more popular, ranked #4 compared to Mannix at #9942 in the United States.

What do Mannix and Theodore mean?

Mannix means "son of the monk, son of the devoted one" (Irish Gaelic (Mac Maonach) origin). Theodore means "divine gift" (Greek origin).

Are Mannix and Theodore boy or girl names?

Mannix is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Mannix Mannix vs Rennix Mannix vs Bibb Mannix vs Arti Mannix vs Curran
← Full profile: Mannix ← Full profile: Theodore Browse all baby names