Animism (from Latin animus, -i "soullife") is the worldview that non-human entities (animals, plants, and inanimate objects or phenomena), possess a spiritual essence.

Animism encompasses the belief that there is no separation between the spiritual and physical (or material) world, and souls or spirits exist, not only in humans, but also in some other animals, plants, rocks, geographic features such as mountains or rivers, or other entities of the natural environment, including thunder, wind, and shadows.

Specifically, animism is used in the anthropology of religion as a term for the belief system or cosmology of some indigenous tribal peoples, especially prior to the development and/or infiltration of colonialism and organized religion. Although each culture has its own different mythologies and rituals, "animism" is said to describe the most common, foundational thread of indigenous peoples "spiritual" or "supernatural" perspectives. The animistic perspective is so fundamental, mundane, everyday and taken-for-granted that most animistic indigenous people do not even have a word in their languages that corresponds to "animism" (or even "religion"); the term is an anthropological construct rather than one designated by the people themselves.