Millie vs Summer

Baby Name Comparison — 2026

Millie

Girl #86 Most Popular 2 Syllables

Meaning

"strength, work"

Origin: Old Germanic (diminutive of Millicent)

Cultural Roots

English American Australian

Quick Stats

Popularity Rank
#86
Total SSA Count
2,910
Syllables
2
Formality
Casual
Nicknames
Mills

Playground Safety Score

✓ All Clear
Full profile for Millie →

Summer

Girl #142 Most Popular 2 Syllables

Meaning

"born in summer"

Origin: English

Cultural Roots

English American Australian

Quick Stats

Popularity Rank
#142
Total SSA Count
2,065
Syllables
2
Formality
Casual
Nicknames
Sum, Sunny

Playground Safety Score

✓ All Clear
Full profile for Summer →

Popularity Comparison

Millie Rank #86
Summer Rank #142

Millie is more popular, ranked #86 vs #142 for Summer.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Millie ___

  • Millie Rose
  • Millie Grace
  • Millie Jane
  • Millie Mae
  • Millie Faye
  • Millie Bea

Summer ___

  • Summer Grace
  • Summer Rain
  • Summer Jade
  • Summer Willow
  • Summer Faye
  • Summer Rose

Sibling Name Ideas

Names that pair well as siblings.

If you choose Millie

Daisy Dolly Maggie Freddie Archie

If you choose Summer

Autumn River Skye Finn Reed

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 Millie or Summer more popular?

Millie is more popular, ranked #86 compared to Summer at #142 in the United States.

What do Millie and Summer mean?

Millie means "strength, work" (Old Germanic (diminutive of Millicent) origin). Summer means "born in summer" (English origin).

Are Millie and Summer boy or girl names?

Millie is primarily a girl name. Summer is primarily a girl name.

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← Full profile: Millie ← Full profile: Summer Browse all baby names