Sedna is the goddess of the sea and marine animals in Inuit mythology, also known as the Mother of the Sea or Mistress of the Sea. The story of Sedna, which is a creation myth, describes how she came to rule over Adlivun, the Inuit underworld.

Inuit religion is the shared spiritual beliefs and practices of the Inuit, an indigenous people from Alaska, northern Canada, parts of Siberia and Greenland. Their religion shares many similarities with some Alaska Native religions. Traditional Inuit religious practices include animism and shamanism, in which spiritual healers mediate with spirits. Today many Inuit follow Christianity ; however, traditional Inuit spirituality continues as part of a living, oral tradition and part of contemporary Inuit society. Inuit who balance indigenous and Christian theology practice religious syncretism.