The name Demi is a boy's name meaning "follower of Demeter; half".

Used as a nickname for Demetrius and his variants, Demi is also a literary name used as an alternative to the traditional nickname "Junior" by the beloved Louisa May Alcott in her novel Little Men. 

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Demi

The name Demi peaked for boys at #6989 in 2023. Demi is also used for girls, ranking #381 in 2025.

The name Demi is a girl's name of Greek origin meaning "half".

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Demi appeared in the US as a baby name thanks to a single celebrity, actress Demi Moore, who put it on the Top 1000 throughout the 1990s. As her star faded, so did the visibility of the name, though now it is rising again on its own steam. It's popular in Europe, too, especially in The Netherlands. Demi may be that unusual name that's launched by a celebrity and then maintains its visibility all by itself.

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The name Demi is currently ranked #381 in U.S. births. and peaked for girls at #339 in 2020. The name is most popular in Louisiana, District of Columbia, and Louisiana. Demi is occasionally used for boys in 2025.

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