Ernesto vs Isai

Baby Name Comparison — 2026

Ernesto

Boy #897 Most Popular 3 Syllables

Meaning

"earnest, serious, vigorous"

Origin: Old High German

Cultural Roots

Spanish Italian Portuguese Latin American

Quick Stats

Popularity Rank
#897
Total SSA Count
262
Syllables
3
Formality
Formal
Nicknames
Nesto, Neto, Ernie

Playground Safety Score

✓ All Clear
Full profile for Ernesto →

Isai

Boy #1,069 Most Popular 3 Syllables

Meaning

"gift, offering (via Jesse/Isai)"

Origin: Hebrew

Cultural Roots

Latino Mexican Spanish Central American

Quick Stats

Popularity Rank
#1,069
Total SSA Count
204
Syllables
3
Formality
Moderate
Nicknames
Sai, Isi

Playground Safety Score

✓ All Clear
Full profile for Isai →

Popularity Comparison

Ernesto Rank #897
Isai Rank #1,069

Ernesto is more popular, ranked #897 vs #1069 for Isai.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Ernesto ___

  • Ernesto Luis
  • Ernesto Miguel
  • Ernesto Antonio
  • Ernesto Carlos
  • Ernesto Javier
  • Ernesto Rafael

Isai ___

  • Isai David
  • Isai Emmanuel
  • Isai Mateo
  • Isai Angel
  • Isai Miguel

Sibling Name Ideas

Names that pair well as siblings.

If you choose Ernesto

Roberto Carlos Valentina Isabella Miguel

If you choose Isai

Ezequiel Elias Daniela Marisol Rafael

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 Ernesto or Isai more popular?

Ernesto is more popular, ranked #897 compared to Isai at #1069 in the United States.

What do Ernesto and Isai mean?

Ernesto means "earnest, serious, vigorous" (Old High German origin). Isai means "gift, offering (via Jesse/Isai)" (Hebrew origin).

Are Ernesto and Isai boy or girl names?

Ernesto is primarily a boy name. Isai is primarily a boy name.

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← Full profile: Ernesto ← Full profile: Isai Browse all baby names