约尼，是相对于林伽的一个印度教崇拜符号，代表湿婆的妻子雪山神女, 多以一个四方形石磨的形象出现。

Yoni (Sanskrit:योनि yoni, literally "vagina" or "womb") is the symbol of the Goddess (Shakti or Devi), the Hindu Divine Mother. Within Shaivism, the sect dedicated to the god Shiva, the yoni symbolizes his consort. The male counterpart of the yoni is the lingam. Their union represents the eternal process of creation and regeneration. Since the late 19th century, some have interpreted the yoni and the lingam as aniconic representations of the vulva and a phallus respectively.