Lou vs Mordecai

Baby Name Comparison — 2026

Lou

Boy #2,123 Most Popular 1 Syllable

Meaning

"famous warrior"

Origin: Germanic via French Louis

Cultural Roots

French English American

Quick Stats

Popularity Rank
#2,123
Total SSA Count
70
Syllables
1
Formality
Casual

Playground Safety Score

24 High Risk

{:type=>:nickname, :severity=>:medium, :message=>"'Lou' can be twisted to 'poo'"}

Full profile for Lou →

Popularity Comparison

Lou Rank #2,123
Mordecai Rank #2,048

Mordecai is more popular, ranked #2048 vs #2123 for Lou.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Lou ___

  • Lou Henry
  • Lou James
  • Lou William
  • Lou Allen
  • Lou Clark
  • Lou Reed

Mordecai ___

  • Mordecai James
  • Mordecai Aaron
  • Mordecai Elijah
  • Mordecai Solomon
  • Mordecai David
  • Mordecai Isaac

Sibling Name Ideas

Names that pair well as siblings.

If you choose Lou

Beau Nell Dot June Ray

If you choose Mordecai

Ezra Solomon Obadiah Miriam Esther

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 Lou or Mordecai more popular?

Mordecai is more popular, ranked #2048 compared to Lou at #2123 in the United States.

What do Lou and Mordecai mean?

Lou means "famous warrior" (Germanic via French Louis origin). Mordecai means "servant of Marduk" (Babylonian origin).

Are Lou and Mordecai boy or girl names?

Lou is primarily a boy name. Mordecai is primarily a boy name.

More Comparisons

Mordecai vs Lou Lou vs Brigham Lou vs Syre Lou vs Layth Lou vs Saylor
← Full profile: Lou ← Full profile: Mordecai Browse all baby names