The nameMillie

Millie is a pet form of Amelia, Mildred or Millicent, now a name in its own right. It is well liked in England and Wales.

Girl's name
English

Meaning

Millie can come from Amelia (Germanic amal, "work"), Millicent ("strong worker") or Mildred ("gentle strength").

Origin

English, from a diminutive.

History

In England and Wales Millie reached 18th place in 2022. In the United States it entered the top 100 for the first time in 2024. The actress Millie Bobby Brown made it known worldwide.

Did you know?

In 2018, at 14, Millie Bobby Brown became UNICEF's youngest ever goodwill ambassador.

Famous people named Millie

Millie Bobby Brown, actress
Millie Bright, footballer
Millie Small, singer

Popularity of the name Millie

Millie in the United States

86thmost popular girls' name in the United States in 2024

2024peak year (2,910 births)

42,765babies named Millie in the United States since 1880

Births per year in the United States. Source: Social Security Administration, names given at least 5 times a year.

Millie was most popular in the United States in the 2020s, with 10,871 births over the decade, 25% of all recorded babies named Millie. Its rise began around 1912, and it peaked in 2024. Half of all babies named Millie in the United States were born before 1965, although it is popular again today. Over the last five years on record, it has been rising: 2,174 births a year on average, against 947 in the five years before.

Millie in the United Kingdom

34thmost popular girls' name in the United Kingdom in 2025

2005peak year (2,575 births)

50,215babies named Millie in the United Kingdom since 1997

Births per year in the United Kingdom. Source: ONS, NRS and NISRA (England, Wales, Scotland, Northern Ireland), names given at least 3 times a year.

Millie was most popular in the United Kingdom in the 2000s, with 20,195 births over the decade, 40% of all recorded babies named Millie. Half of all babies named Millie in the United Kingdom were born before 2011, so it is mostly a name of today's children and teenagers. Over the last five years on record, its popularity has held steady at around 1,611 births a year.

Millie in Ireland

38thmost popular girls' name in Ireland in 2025

2022peak year (206 births)

2,406babies named Millie in Ireland since 1964

Births per year in Ireland. Source: Central Statistics Office, names given at least 3 times a year.

Millie in France

813thmost popular girls' name in France, latest official figures

2025peak year (45 births)

555babies named Millie in France since 1900

Births per year in France. Source: Insee, French national statistics office, latest official figures. Rounded numbers.

Millie in Belgium

75thmost popular girls' name in Belgium in 2025

2023peak year (120 births)

710babies named Millie in Belgium since 1995

Births per year in Belgium. Source: Statbel, names given at least 5 times a year.

Sibling names for Millie

Names from the same generation as Millie, whose popularity in the United States has followed a similar path.

For a sister

For a brother

How many people are named Millie? See the counter → · What would your name be in 1950? · Name origin quiz

Millie in our baby name lists

Frequently asked questions

What does the name Millie mean?

Millie can come from Amelia (Germanic amal, "work"), Millicent ("strong worker") or Mildred ("gentle strength").

What is the origin of the name Millie?

English, from a diminutive.

Is Millie a girl's or a boy's name?

Millie is a girl's name.

How popular is the name Millie?

In 2024, Millie was the 86th most popular name for baby girls in the United States, with 2,910 births.

What are good sibling names for Millie?

Names from the same generation, with a similar popularity in the United States: Margot, Poppy, Maeve and Eloise for a sister, Enzo, Waylon, Brooks and Walker for a brother.

Who are famous people named Millie?

Millie Bobby Brown, actress; Millie Bright, footballer; Millie Small, singer.