Back to Baby Names

Lou

Pronunciation: [ l-OO ]

Girl Name #2,531 Most Popular Hidden Gem 1 Syllable

A one-syllable vintage gem with effortless cool

French English American
Vintage Minimalist Playful Classic Bold

Meaning & Origin

"famous warrior"
Origin: Germanic
Language: English
"renowned in battle"
Origin: Old High German Hluodowig
Language: French

The Story of Lou

Lou is a short form of Louise or Louisa, the feminine form of Louis, which traces back to the Old High German 'Hluodowig' meaning 'famous warrior' (hlud = fame, wig = warrior). While long used as a nickname, Lou has increasingly been embraced as a standalone name, particularly in France where single-syllable names have been fashionable for girls. It has an endearing simplicity that manages to feel both modern and retro simultaneously.

Lou surged in France in the 2000s and 2010s, becoming a top-10 girls' name there. In the US, it's been riding the wave of short, old-fashioned names being reclaimed — the same trend that brought back Mae, Dot, and Bea.

In France, Lou is fully mainstream as a given name rather than a nickname, reflecting French preference for elegant brevity. In the US and UK, it carries a quirky, vintage charm associated with free-spirited characters in literature and film.

Fun Facts

  • Lou was a top-5 girls' name in France for much of the 2010s
  • Lou Reed, the rock musician, helped make the name feel artistically cool for a new generation

Lou in Other Languages

French Lou
German Luise
Italian Luisa
Spanish Luisa
Portuguese Luísa

Famous People Named Lou

L

Lou Reed

Musician

1942

American rock musician and songwriter, founder of The Velvet Underground

L

Lou Gehrig

Athlete

1903

American baseball legend known as the Iron Horse and for his courageous ALS diagnosis speech

L

Lou Clark Fictional

Other

Protagonist of Jojo Moyes' novel 'Me Before You', an optimistic young woman who transforms a quadriplegic man's final mo...

Protagonist of Jojo Moyes' novel 'Me Before You', an optimistic young woman who transforms a quadriplegic man's final months

Quick Facts

Gender
Girl
Syllables
1
Popularity Rank
#2,531
Total SSA Count
70
Cultural Origins
French English American
Pronunciation
Easy
Formality
Casual
Cross-Cultural Ease
High

Alternative Spellings

Common Nicknames

Lulu

Pairs Well With

Lou Mae Lou Jane Lou Pearl Lou Elise Lou Margaret Lou Frances Lou Harriet

Sibling Names

Also a Boy Name

Lou is also used as a boy name, ranked #2123.

View Lou as a boy name →

Similar Names

Playground Safety

Kid-Friendly

We found 2 potential concerns.

Unlock full report

Can't decide?

Start a tournament bracket with Lou and other names you're considering.

Start a Tournament

Like this name?

Check how Lou sounds with your surname and test for potential nicknames.

Analyze This Name
Browse more girl names →

Explore More Generators

Frequently Asked Questions About Lou

What does the name Lou mean?
"famous warrior" (from Germanic). "renowned in battle" (from Old High German Hluodowig). Lou is a short form of Louise or Louisa, the feminine form of Louis, which traces back to the Old High German 'Hluodowig' meaning 'famous warrior' (hlud = fame, wig = warrior). While long used as a nickname, Lou has increasingly been embraced as a standalone name, particularly in France where single-syllable names have been fashionable for girls. It has an endearing simplicity that manages to feel both modern and retro simultaneously.
What is the origin of the name Lou?
Lou has Germanic, Old High German Hluodowig, French, English, and American origins. In Germanic, it means "famous warrior". In Old High German Hluodowig, it means "renowned in battle".
Is Lou a boy or girl name?
Lou is used as both a girl and boy name. As a girl name, it is ranked #2531. As a boy name, it is ranked #2123. Lou is more commonly used as a boy name.
How do you pronounce Lou?
Lou is pronounced l-OO.
How popular is the name Lou?
Lou is currently ranked #2531 in popularity for girl names in the United States.
What are common nicknames for Lou?
Common nicknames for Lou include Lulu.
What are good middle names for Lou?
Popular middle name pairings include Lou Mae, Lou Jane, Lou Pearl, Lou Elise, Lou Margaret, Lou Frances, and Lou Harriet.
What are good sibling names for Lou?
Names that pair well with Lou as siblings include Bea, Dot, Kit, Ned, Sal, Pip, and Gus.
How many syllables does Lou have?
Lou has 1 syllable, making it easy to say and remember.
Is Lou a common or rare name?
Lou is an uncommon name, ranked #2531 in the US. Its rarity gives it a distinctive, memorable quality.

About the Name Lou

Lou is a girl name with French, English, and American origins . The name means "famous warrior" in Germanic .

Is Lou a boy or girl name? Lou is used as both a girl and boy name. As a girl name, it ranks #2,531 in popularity. As a boy name, it ranks #2,123. Lou is more commonly used as a boy name.

Lou is currently ranked #2,531 in popularity for girl names in the United States.

The name Lou has 1 syllable and is pronounced l-OO, making it easy to pronounce and remember.

Common nicknames for Lou include Lulu. These shorter forms provide casual alternatives while keeping the elegance of the full name.

Alternative spellings of Lou include Louise, Louisa, Louella, Lourdes . Each spelling variation gives the name a slightly different character while preserving its sound and meaning.

Explore Name Lists