The White Goddess: a Historical Grammar of Poetic Myth is a book-length essay on the nature of poetic myth-making by the English writer Robert Graves. First published in 1948, the book is based on earlier articles published in Wales magazine; corrected, revised and enlarged editions appeared in 1948, 1952 and 1961. The White Goddess represents an approach to the study of mythology from a decidedly creative and idiosyncratic perspective. Graves proposes the existence of a European deity, the "White Goddess of Birth, Love and Death", much similar to the Mother Goddess, inspired and represented by the phases of the Moon, who lies behind the faces of the diverse goddesses of various European and pagan mythologies.

Captain Robert von Ranke Graves was an English poet, soldier, historical novelist and critic. His father was Alfred Perceval Graves, a celebrated Irish poet and figure in the Gaelic revival; they were both Celticists and students of Irish mythology.