Colleen vs Una

Baby Name Comparison — 2026

Colleen

Girl #2,797 Most Popular 2 Syllables

Meaning

"girl, young woman"

Origin: Irish Gaelic

Cultural Roots

Irish Irish-American Scottish Australian

Quick Stats

Popularity Rank
#2,797
Total SSA Count
60
Syllables
2
Formality
Moderate
Nicknames
Collie, Cole, Coco

Playground Safety Score

15 High Risk

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

Full profile for Colleen →

Popularity Comparison

Colleen Rank #2,797
Una Rank #2,965

Colleen is more popular, ranked #2797 vs #2965 for Una.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Colleen ___

  • Colleen Marie
  • Colleen Ann
  • Colleen Patricia
  • Colleen Frances
  • Colleen Rose
  • Colleen Elizabeth

Una ___

  • Una Rose
  • Una Mae
  • Una Grace
  • Una Claire
  • Una Violet
  • Una Pearl

Sibling Name Ideas

Names that pair well as siblings.

If you choose Colleen

Bridget Siobhan Patrick Kieran Maureen

If you choose Una

Nora Finn Mara Leo Iris

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 Colleen or Una more popular?

Colleen is more popular, ranked #2797 compared to Una at #2965 in the United States.

What do Colleen and Una mean?

Colleen means "girl, young woman" (Irish Gaelic origin). Una means "one, unity" (Latin origin).

Are Colleen and Una boy or girl names?

Colleen is primarily a girl name. Una is primarily a girl name.

More Comparisons

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← Full profile: Colleen ← Full profile: Una Browse all baby names