Girls · #73 in 2025
Millie: Meaning, Origin & Popularity
- Origin
- English short form
- Meaning
- Depends on the longer name
- Pronunciation
- MIL-ee
- Nickname options
- Mills
Origin and meaning
Millie is a short form of names including Mildred and Millicent, and can arise from other names with similar sounds. Those longer names do not all share a meaning. Millie is also established as an independent given name.
U.S. popularity
Millie ranked #73 for girls in the United States in 2025, with 3,353 girls given this spelling. Its highest recorded U.S. rank was #73, reached in 2025. Historical coverage: 1880–2025. Peak refers to rank, not the largest number of births.
Source: Social Security Administration; historical peaks calculated from its national name files. Rankings count each spelling separately within the listed sex.
The Hello Baby Names take
Millie feels cozy and cheerful, with the affectionate quality of a family nickname. It is appealing when a longer name feels more formal than you want.
Things to consider
If you prefer Millie on its own, a formal expansion is optional. Consider whether you love the longer name independently before choosing one.
If you love Millie, consider…
- Ellie: Offers another gentle standalone short form.
- Mila: Keeps the opening with a more open ending.
- Sadie: Adds a little vintage snap.
- Josie: Shares the friendly nickname style.
- Daisy: Brings a brighter botanical association.
- Lucy: Offers a more classic two-syllable sound.
- Emilia: Provides a longer option with Millie available.
- Maisie: Keeps the playful, affectionate mood.