Antonia Anna "Toni" Wolff (18 September 1888 — 21 March 1953) was a Swiss Jungian analyst and a close associate of Carl Jung. During her analytic career Toni Wolff published relatively little under her own name, but she helped Jung identify, define, and name some of his best-known concepts including anima, animus, and persona. Her best-known paper was an essay on four "types" or aspects of the feminine psyche: the Amazon, the Mother, the Hetaira (or Courtesan), and the Medial (or mediumistic) Woman.