Millie Name Meaning: What Does Millie Mean for a Cat?
Millie means “gentle strength.” It is the short form of Mildred, whose Old English roots pair gentleness with power, a sweet vintage nickname with more backbone than it lets on.
Millie at a Glance
- Meaning
- gentle strength
- Origin
- Germanic
- Root
- a short form of Mildred
- Used for
- Female cats
- Style
- Classic, Cute
What Does the Name Millie Mean?
Millie means “gentle strength.” The name traces back to a short form of Mildred, and its origin is Germanic. The meaning above is the verified literal one, not a personality guess, checked for this page against Behind the Name.
Short form of Mildred; sweet vintage nickname.
Millie is pronounced MILL-ee – two syllables. Behind the Name gives the pronunciation as /ˈmɪl.i/ and lists Millie as a feminine English name – a diminutive of Mildred and Millicent.
Behind the Name traces Mildred to the Old English name Mildþryð, meaning “gentle strength” – from the elements milde “gentle” and þryð “strength”. Saint Mildred was a 7th-century abbess, the daughter of the Kentish princess Saint Ermenburga. After the Norman Conquest the name became rare, but it was revived in the 19th century.
More Names Like Millie
You can browse Millie alongside hundreds of other verified names in these lists, or spin the cat name generator for fresh ideas.
Frequently Asked Questions
What does the name Millie mean?
Millie means “gentle strength.” It comes from a short form of Mildred.
Is Millie a good name for a female cat?
Yes, Millie is listed for female cats in our name database, and its meaning (“gentle strength”) gives the name real substance. It is a longer name, but a distinctive one, and cats learn the sound of a name used consistently, whatever its length.
Where can I find more names like Millie?
Millie appears in our 315 Girl Cat Names and 219 Cute Cat Names lists, and the full cat names hub gathers every collection in one place.
How do you pronounce Millie?
Say MILL-ee: /ˈmɪl.i/. Two syllables, with the stress on the first.
What is Millie short for?
Millie is a diminutive of Mildred – from the Old English Mildþryð, “gentle strength” – and also of Millicent. Related forms include Milly, Emmie and Emmy.
Is Millie a popular name?
Yes – Behind the Name ranked Millie #36 for girls in England and Wales and #73 in the United States in 2025, and #7 in Scotland.
By Brianna Baxter
Meaning and origin verified against Behind the Name.