The Calista Elders Council (CEC) is a non-profit organization representing the 1,300 Yup'ik tradition bearers of the Yukon-Kuskokwim delta in southwest Alaska. It is the major research organization for the region, including a population of more than 20,000, and is active in documenting the traditional knowledge of the Yup'ik people. CEC was established in 1991 as a non-profit organization by Calista (the profit corporation for the Yukon-Kuskokwim delta).

Mark John became executive director in 1997. Under John's leadership, guided by a nine-member board of elders, the CEC has worked to address cultural issues in the Yukon-Kuskokwim delta, including rapid loss of traditional knowledge. Activities include youth and elder culture camps, topic-specific gatherings, the Yupiit Yuraryarait regionwide dance festival held every three to four years, and the production of books and videos to share information gathered during CEC events and activities.