What Does the Name Millie Mean?
Millie's meaning depends on which longer name it's shortened from. As a form of Mildred (Old English 'milde' + 'thryth'), it suggests 'gentle strength.' As a form of Millicent, it relates to industriousness; as a nickname for Amelia or Emily, it inherits their own separate meanings of 'work' or 'rival.'
The Origin & History of Millie
Millie has been used as a nickname in English-speaking countries for centuries, especially popular in the Victorian era alongside Mildred and Millicent. In recent decades it has broken free of its parent names and is now overwhelmingly given as a complete first name of its own.
Popularity & Modern Use
Millie has surged in the US and UK over the past decade, part of the broader revival of vintage, Victorian-flavored nicknames-turned-names like Nellie and Effie, and boosted by a very well-known young actress who shares the name.
Personality & Associations
Millie tends to feel bright, sweet, and a little old-fashioned in a charming way — cheerful rather than formal.
Famous People Named Millie
Actress Millie Bobby Brown, known for Stranger Things and Enola Holmes, is the name's most prominent modern bearer and a major driver of its recent rise.
Nicknames & Variations
Millie is itself typically the short, everyday form. Milly is an alternate spelling, and Millicent and Mildred are the classic longer names it can be shortened from.