Emma vs Rei

Baby Name Comparison — 2026

Emma

Girl #2 Most Popular 2 Syllables

Meaning

"strength"

Origin: Germanic

Cultural Roots

English German French

Quick Stats

Popularity Rank
#2
Total SSA Count
13,485
Syllables
2
Formality
Moderate
Nicknames
Em, Emmy

Playground Safety Score

✓ All Clear
Full profile for Emma →

Rei

Boy #3,800 Most Popular 1 Syllable

Meaning

"courtesy, respect, gratitude"

Origin: Japanese kanji 礼

Cultural Roots

Japanese American Brazilian

Quick Stats

Popularity Rank
#3,800
Total SSA Count
29
Syllables
1
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Rei →

Popularity Comparison

Emma Rank #2
Rei Rank #3,800

Emma is more popular, ranked #2 vs #3800 for Rei.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Emma ___

  • Emma Rose
  • Emma Grace
  • Emma Jane
  • Emma Louise
  • Emma Kate
  • Emma Marie

Rei ___

  • Rei James
  • Rei Thomas
  • Rei Alexander
  • Rei Kenji
  • Rei Haruki
  • Rei Jun

Sibling Name Ideas

Names that pair well as siblings.

If you choose Emma

Olivia Charlotte Liam Henry Sophia

If you choose Rei

Kai Sora Haru Ryu Suki

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 Emma or Rei more popular?

Emma is more popular, ranked #2 compared to Rei at #3800 in the United States.

What do Emma and Rei mean?

Emma means "strength" (Germanic origin). Rei means "courtesy, respect, gratitude" (Japanese kanji 礼 origin).

Are Emma and Rei boy or girl names?

Emma is primarily a girl name. Rei is primarily a boy name.

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← Full profile: Emma ← Full profile: Rei Browse all baby names