A shaman is a spiritual practitioner, traditionally found within many indigenous cultures, believed to act as an intermediary between the physical world and the spirit world, often for the purposes of healing, guidance, or ceremony. The role varies significantly across the cultures that use it, and the specific practices, beliefs, and training involved differ from one tradition to another.

In a more modern or Western context, the term is sometimes used more loosely to describe someone practicing shamanic-style techniques, such as journeying or energy work, though this usage doesn't always reflect the specific cultural traditions the word originates from.