The Brahmin and the Mongoose (or The Brahmin's Wife and the Mongoose) is a folktale from India, and "one of the world's most travelled tales". It describes the rash killing of a loyal animal, and thus warns against hasty action. The story underlies certain legends in the West, such as that of Llewellyn and his dog Gelert in Wales, or that of Saint Guinefort in France. It is classified as Aarne-Thompson type 178A.