Bulsahalmeoni, or Grandmother Bulsa, is a deity worshipped by possessed shamans (gangsinmu) in the Seoul area.
Despite the shared name, this deity is unrelated to Bulsa (Buddhist Deity of the Heavens), featured in its namesake segment in shamanic rituals of the Seoul area. Bulsahalmeoni is worshipped in shaman shrines in the form of a shamanic painting in which the deity is depicted as an elderly woman dressed in white hanbok and wearing Buddhist prayer beads around her neck, with a wooden gong (moktak) placed on the table in front of the painting. The figure is similar to the goddess Jeseok, but can be distinguished by the white conical hat, which Bulsahalmeoni does not don.
Bulsahalmeoni is known as a deity that oversees the shamanic profession, and it is believed that a shaman will succeed and thrive with outstanding skills if this goddess possesses her in the initiation process.