Arleen vs Marylou

Baby Name Comparison — 2026

Arleen

Girl #4,811 Most Popular 2 Syllables

Meaning

"pledge, oath (possible Celtic origin)"

Origin: Celtic 'Arlen'

Cultural Roots

Irish American English Scottish

Quick Stats

Popularity Rank
#4,811
Total SSA Count
28
Syllables
2
Formality
Moderate
Nicknames
Arli, Arlee, Leen

Playground Safety Score

15 High Risk

{:type=>:rhyme, :severity=>:medium, :message=>"'Arleen' rhymes with 'mean'"}

Full profile for Arleen →

Marylou

Girl #4,929 Most Popular 3 Syllables

Meaning

"beloved, star of the sea (Mary) + famous warrior (Lou)"

Origin: Hebrew + Germanic

Cultural Roots

American English French

Quick Stats

Popularity Rank
#4,929
Total SSA Count
27
Syllables
3
Formality
Casual
Nicknames
Mary, Lou, ML

Playground Safety Score

✓ All Clear
Full profile for Marylou →

Popularity Comparison

Arleen Rank #4,811
Marylou Rank #4,929

Arleen is more popular, ranked #4811 vs #4929 for Marylou.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Arleen ___

  • Arleen Marie
  • Arleen Grace
  • Arleen Louise
  • Arleen Ann
  • Arleen Kay
  • Arleen May

Marylou ___

  • Marylou Ann
  • Marylou Grace
  • Marylou Jane
  • Marylou Rose
  • Marylou Elizabeth
  • Marylou Sue

Sibling Name Ideas

Names that pair well as siblings.

If you choose Arleen

Shirley Marlene Lorraine Gerald Donald

If you choose Marylou

Betty Jo Billie Dolly Bobby Jimmy

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 Arleen or Marylou more popular?

Arleen is more popular, ranked #4811 compared to Marylou at #4929 in the United States.

What do Arleen and Marylou mean?

Arleen means "pledge, oath (possible Celtic origin)" (Celtic 'Arlen' origin). Marylou means "beloved, star of the sea (Mary) + famous warrior (Lou)" (Hebrew + Germanic origin).

Are Arleen and Marylou boy or girl names?

Arleen is primarily a girl name. Marylou is primarily a girl name.

More Comparisons

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← Full profile: Arleen ← Full profile: Marylou Browse all baby names