Demilune
# Demilune

Demilune, demi-lune, or similar, may refer to:

* Semicircle shape
   * A half-moon, the first quarter or last quarter lunar phase
* Semicircular bund, a rainwater harvesting technique in arid areas
* Ravelin, a type of fortification also called demi-lune
* Serous demilune (Demilunes of Heidenhain), the crescent shaped formations on salivary glands
* La Demi Lune, a card game also known as Crescent (solitaire)
* Demilune (Op.74), a composition by Alan Hovhaness; see List of compositions by Alan Hovhaness
* La Demi-Lune, Lannemezan, Hautes-Pyrénées, Occitanie, France; a neighbourhood
* Demi-Lune, La Demi-Lune, Lannemezan, Hautes-Pyrénées, Occitanie, France; a park
