heyotag

Name meaning & stats

Millie

Millie means “gentle strength” (Old English origin). 29,856 US babies since 1940, peak 2025.

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What it means

“gentle strength”

Old EnglishPet form of Mildred

In US birth records

Peak year: 2025

40s50s60s70s80s90s00s10s20s

29,856 US babies were named Millie between 1940 and 2025.

Careers

Not enough notable people named Millie (or its spelling family) to say anything reliable yet. That's a gap in the data, not the name.

Spelling family

The most common spelling: 56% of the family

  • Millie 56%
  • Miley 29%
  • Milly 5%
  • Mylie 4%
  • Mily 1%
  • Mili 1%
  • Milli 1%
  • Meili 1%
  • Mylei <1%
  • Meily <1%

Names that sound the same, grouped by Heyotag. Share of US babies since 1940.

Name twins (peaked around 2025)