Demi
Demi was the 381st most popular name for girls in 2025, given to 804 babies. Its best year was 2020, when it ranked 339th with 914 babies. Over the last ten years it has moved up 220 places. More babies were named Demi in the 2010s than in any other decade.
Meaning short form of Demetria · Greek
Say it duh-MEE /dəˈmi/
- Rank in 2025
- #381 girls, down 42 places since 2020
- Babies in 2025
- 804girls
- Girls and boys
- Almost always a girl’s name2021–2025
- Peak year
- 2020914 babies
- Total since 1880
- 14,921babies recorded
What does the name Demi mean?
Demi is a short form of Demetria, the feminine of Demetrius, which DMNES explains as Greek for "devoted to Demeter", the goddess of grain and harvest. Wiktionary notes it was introduced into English use by the actress Demi Moore in the 1990s. It also resembles French demi, "half", which is not its source.
Δημήτριος (Ancient Greek, “devoted to Demeter”)
How sure is this? Well established.
Other explanations you may read: from French demi 'half'.
Related names: Demetria, Demetrius.
See also: Greek names, names that mean God.
Sources for this meaning
- Wiktionary, entry 'Demi', Wiktionary (Wikimedia Foundation)
- Dictionary of Medieval Names from European Sources (ed. S. L. Uckelman), Edition 2023 no. 1, s.v. 'Demetrius', DMNES, Durham University
Demi popularity since 1880
A few boys are given the name too: 52 since 2017, 7 in 2025.
| Year | Rank (girls) | Babies (girls) |
|---|---|---|
| 2025 | #381 | 804 |
| 2020 | #339 | 914 |
| 2010 | #848 | 316 |
| 2000 | #1,116 | 183 |
| 1990 | #1,058 | 168 |
| 1980 | — | — |
| 1970 | — | — |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Demi, counting every spelling?
Demi is the most common spelling of a name family that ranked #409 for girls in 2025 once every spelling is counted together, compared with #381 for Demi on its own. Together these spellings went to 804 girls in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Demi | 804 | #381 | 3,901 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Demi?
804 of the 3,606,400 babies born in the US in 2025 were named Demi (0.22 per 1,000 births). For a girl named Demi born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 10 (of 430 pupils) would have a child named Demi.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Demi?
About 14,700 people born in the US named Demi are alive today, with a median age of 10; half are between 5 and 23. That makes Demi a young name: most people with it are children.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Demi by state
How common Demi was among girls born in each state in 2021–2025. It is notably more common than nationally in Louisiana (7.5×), District of Columbia (4.4×), Mississippi (2.9×), Maryland (2.3×), Arkansas (1.9×). It is least common, relative to the national rate, in Colorado, Idaho, Oregon.
Names with a similar history
These names rose and fell in step with Demi: their share of US girls followed the most similar curve since 1880. If you like Demi, they share its era and feel.
Middle names for Demi · Sibling names for Demi
Questions about the name Demi
What does Demi mean?
Demi means “short form of Demetria” (Greek origin). Certainty: well established.
How popular is the name Demi?
Demi was the 381st most popular name for girls in 2025, given to 804 babies. Its best year was 2020, when it ranked 339th with 914 babies. Over the last ten years it has moved up 220 places. More babies were named Demi in the 2010s than in any other decade.
Is Demi a boy or girl name?
In 2021–2025, almost always a girl’s name given the name Demi in the US.
Where is Demi most popular?
In 2021–2025, Demi was most common in Louisiana (3.59 per 1,000 girls), followed by District of Columbia and Mississippi.