Grania is a genus of marine annelid worms.
Grania may also refer to: Gráinne, Irish mythical character Grania, play by Lady Gregory Grania: She-King of the Irish Seas, 2007 novel by Grace O'Malley Grania Davis (1943–2017), American author and editor of science fiction and fantasy novels and short stories Grania gens, plebeian family of ancient Rome Grania Langrishe (born 1934), Irish botanical illustrator and artist Grania Rubomboras, Ugandan electrical engineer Hope Nakazibwe Grania (born 1985), Ugandan politician
See also Diarmuid and Grania, play