In Irish mythology, the Badb "crow"—is a war goddess who takes the form of a crow. She is known to cause fear and confusion among soldiers to move the tide of battle to her favoured side. She may also appear prior to a battle to foreshadow the extent of the carnage to come, or to predict the death of a notable person. She would sometimes do this through wailing cries, leading to comparisons with the bean-sídhe (banshee).
Along with her sisters, Macha and the Morrígan, Badb is part of a trio of war goddesses known as the Morrígna.