A noaidi (Northern Sami: noaidi, Lule Sami: noajdde, Southern Sami: nåejttie, Skolt Sami: nōjjd, Ter Sami: niojte, Kildin Sami: noojd/nuojd) is a shaman of the Sami people in the Nordic countries representing an indigenous nature religion. Most noaidi practices died out during the 17th century, most likely because they resisted christianisation and king authority. Their actions were referred to in courts as "magic" or "sorcery" (cf. witchcraft). Several Sámi shamanistic beliefs and practices were similar to those of some Siberian cultures.
Noaidis, Sámi shaman, were traditionally the healers and protectors. Noaidis are said to have the role of mediator between humans and the spirits. To undertake this mediation, the noaidi communicated with the spirit world, asking what sacrifice needed to be made by a person so that they might return to good health, be successful in their hunt for food, and even for good weather. Sacrifices were designed by the noaidi to reestablish the balance between the mortal and immortal worlds. Using a traditional drum, which is the most important symbol and tool of the Sámi shaman, the noaide invoked assistance from benevolent spirits and conducted out-of-body travel via the “free soul” with the help of other siida members. The Sámi distinguish between the “free soul” versus the more mundane “body soul”; the “body soul” is unable to traverse the divide separating the spiritual netherworld from the more mundane, corporeal, real world.
A noaidi could engage in any kind of affair that demanded wisdom; it is said they took payments for their services. The activities included healing people, helping children, making decisions and protecting reindeer, which represented the most important source of food and were also used as tribute payment.