Rosier may refer to:
Rosier (demon), a name included in Gustav Davidson’s 1967 A Dictionary Of Angels "Rosier" (song), a 1994 single by Luna Sea Rosier (surname), including a list of people with the name
See also Le Rosier de Madame Husson, an 1887 novella by Guy de Maupassant Le Rosier miraculeux, a 1904 French short silent film Saint-Hilaire-du-Rosier, a commune in the Isère department, France