Yoni (IAST: yoni; sometimes also IAST: yonī), sometimes called pindika, is an abstract or aniconic representation of the Hindu goddess Shakti. It is usually shown with linga – its masculine counterpart. Together, they symbolize the merging of microcosmos and macrocosmos, the divine eternal process of creation and regeneration, and the union of the feminine and the masculine that recreates all of existence. The yoni is conceptualized as nature's gateway of all births, particularly in the esoteric Kaula and Tantra practices, as well as the Shaktism and Shaivism traditions of Hinduism.

Yoni is a Sanskrit word that has been interpreted to literally mean the "womb", the "source", and the female organs of generation. It also connotes the female sexual organs such as "vagina", "vulva", and "uterus", or alternatively to "origin, abode, or source" of anything in other contexts. For example, the Vedanta text Brahma Sutras metaphorically refers to the metaphysical concept Brahman as the "yoni of the universe". The yoni with linga iconography is found in Shiva temples and archaeological sites of the Indian subcontinent and southeast Asia, as well in sculptures such as the Lajja Gauri.