Throughout the world, Деметр (Demeter 
, Деметр 
, Demetr 
) is a rare dominantly male, but uncommonly feminine given name. The given name Деметр is characteristic of Romania, where it is quite a rare mostly male, but infrequently girly name, Hungary, where it is a rare gender-neutral name, and Slovenia, where it is a rare masculine name. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Romania, Hungary, and Slovakia. More frequently, Деметр is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Demeter | Romania, Germany, Hungary, Slovakia, United States |
| Деметр | Kazakhstan, Russia, Ukraine |
| Demetr | Czechia, United States, Venezuela |
D'Mitr, Demetre, Demetrio, Demetrios, Demetrius, Demetriusz, Demitri, Dimitar, Dimitri, Dimitrij, Dimitrios, Dimitris, Dimitry, Dimtri, Dmitr, Dmitri, Dmitrii, Dmitrij, Dmitriy, Dmitry, Dumitru, Δημήτρης, Δημήτριο, Δημήτριος, Деметер, Деметре, Деметрий, Деметрио, Деметриос, Деметриус, Деметріо, Дзмітрый, Дима, Димитар, Димитр, Димитри, Димитрий, Димитриос, Димитрис, Димитър, Димка, Димочка, Дми'Трий, Дмитрий, Дмитро, Дмітрій, Думитру, Думітру, Митя, ديمتريوس,
Деметр is also a name for the fictitious and mythical characters: Demeter , the Greek goddess of the harvest, grains, and agriculture, Hades; Demeter , the fictional character from Is It Wrong to Try to Pick Up Girls in a Dungeon?; Demeter , the character from "Cats and Demeter Eleusinia , the Greek deity and aspect of Demeter.