Cleo vs Sierra

Baby Name Comparison — 2026

Cleo

Girl #603 Most Popular 2 Syllables

Meaning

"glory, fame"

Origin: Greek

Cultural Roots

English French American European

Quick Stats

Popularity Rank
#603
Total SSA Count
495
Syllables
2
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Cleo →

Sierra

Girl #596 Most Popular 3 Syllables

Meaning

"mountain range with jagged peaks"

Origin: Spanish/Latin (serra = saw)

Cultural Roots

American Spanish Latin American

Quick Stats

Popularity Rank
#596
Total SSA Count
505
Syllables
3
Formality
Moderate
Nicknames
Sisi, Sierra

Playground Safety Score

✓ All Clear
Full profile for Sierra →

Popularity Comparison

Cleo Rank #603
Sierra Rank #596

Sierra is more popular, ranked #596 vs #603 for Cleo.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cleo ___

  • Cleo Rose
  • Cleo Jade
  • Cleo Simone
  • Cleo Fleur
  • Cleo Mae
  • Cleo Pearl

Sierra ___

  • Sierra Rose
  • Sierra Marie
  • Sierra Grace
  • Sierra Jade
  • Sierra Leigh
  • Sierra Mae

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cleo

Felix Theo Jasper Iris Phoebe

If you choose Sierra

Savannah Montana Phoenix River Aspen

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 Cleo or Sierra more popular?

Sierra is more popular, ranked #596 compared to Cleo at #603 in the United States.

What do Cleo and Sierra mean?

Cleo means "glory, fame" (Greek origin). Sierra means "mountain range with jagged peaks" (Spanish/Latin (serra = saw) origin).

Are Cleo and Sierra boy or girl names?

Cleo is primarily a girl name. Sierra is primarily a girl name.

More Comparisons

Sierra vs Cleo Cleo vs Imani Cleo vs Iyla Cleo vs Avianna Cleo vs Indy
← Full profile: Cleo ← Full profile: Sierra Browse all baby names