Helius vs Kathleen

Baby Name Comparison — 2026

Helius

Boy #34,050 Most Popular 3 Syllables

Meaning

"sun, radiant light"

Origin: Ancient Greek

Cultural Roots

Greek Roman European American

Quick Stats

Popularity Rank
#34,050
Total SSA Count
5
Syllables
3
Formality
Formal
Nicknames
Heli, Hel

Playground Safety Score

✓ All Clear
Full profile for Helius →

Kathleen

Girl #1,110 Most Popular 2 Syllables

Meaning

"pure, virginal"

Origin: Greek katharos via Irish

Cultural Roots

Irish American British Australian

Quick Stats

Popularity Rank
#1,110
Total SSA Count
220
Syllables
2
Formality
Formal
Nicknames
Kathy, Kate, Kat

Playground Safety Score

15 High Risk

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

Full profile for Kathleen →

Popularity Comparison

Helius Rank #34,050
Kathleen Rank #1,110

Kathleen is more popular, ranked #1110 vs #34050 for Helius.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Helius ___

  • Helius Alexander
  • Helius James
  • Helius Michael
  • Helius Theodore
  • Helius Augustus
  • Helius Orion

Kathleen ___

  • Kathleen Anne
  • Kathleen Marie
  • Kathleen Grace
  • Kathleen Rose
  • Kathleen Margaret
  • Kathleen Elizabeth

Sibling Name Ideas

Names that pair well as siblings.

If you choose Helius

Apollo Orion Selene Lyra Castor

If you choose Kathleen

Bridget Maureen Colleen Patrick Michael

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 Helius or Kathleen more popular?

Kathleen is more popular, ranked #1110 compared to Helius at #34050 in the United States.

What do Helius and Kathleen mean?

Helius means "sun, radiant light" (Ancient Greek origin). Kathleen means "pure, virginal" (Greek katharos via Irish origin).

Are Helius and Kathleen boy or girl names?

Helius is primarily a boy name. Kathleen is primarily a girl name.

More Comparisons

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← Full profile: Helius ← Full profile: Kathleen Browse all baby names