Cass vs Mia

Baby Name Comparison — 2026

Cass

Boy #5,414 Most Popular 1 Syllable

Meaning

"hollow, vain (from Latin Cassius)"

Origin: Latin

Cultural Roots

English American Greek

Quick Stats

Popularity Rank
#5,414
Total SSA Count
18
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Cass →

Mia

Girl #5 Most Popular 2 Syllables

Meaning

"mine, beloved"

Origin: Scandinavian

Cultural Roots

Italian Scandinavian Spanish

Quick Stats

Popularity Rank
#5
Total SSA Count
12,113
Syllables
2
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Mia →

Popularity Comparison

Cass Rank #5,414
Mia Rank #5

Mia is more popular, ranked #5 vs #5414 for Cass.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cass ___

  • Cass River
  • Cass James
  • Cass Elliott
  • Cass Monroe
  • Cass Theodore
  • Cass August

Mia ___

  • Mia Rose
  • Mia Grace
  • Mia Jane
  • Mia Claire
  • Mia Elizabeth
  • Mia Louise

Sibling Name Ideas

Names that pair well as siblings.

If you choose Cass

Juno Wren Beau Quinn Milo

If you choose Mia

Liam Noah Sophia Olivia Ava

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 Cass or Mia more popular?

Mia is more popular, ranked #5 compared to Cass at #5414 in the United States.

What do Cass and Mia mean?

Cass means "hollow, vain (from Latin Cassius)" (Latin origin). Mia means "mine, beloved" (Scandinavian origin).

Are Cass and Mia boy or girl names?

Cass is primarily a boy name. Mia is primarily a girl name.

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← Full profile: Cass ← Full profile: Mia Browse all baby names