Yup'ik masks (Yup'ik kegginaquq sg kegginaquk dual kegginaqut pl and nepcetaq sg nepcetat pl; in the Lower Yukon dialects avangcaq sg avangcak dual avangcat pl ; in Nunivak Cup'ig dialect agayu) are expressive shamanic ritual masks made by the Yup'ik people of southwestern Alaska.
Also known as Cup'ik masks for the Chevak Cup'ik dialect speaking people of Chevak and Cup'ig masks for the Nunivak Cup'ig dialect speaking people of Nunivak Island.
After Christian contact in the late nineteenth century, masked dancing was suppressed, and today it is not practiced as it was before in the Yup'ik villages.
[1][2][3] While the Iñupiaq and Yup'ik are culturally and ethnically related, separated only by language differences and, often, hundreds of miles of territory, they have developed distinct versions of similar traditional mask forms.
In the case of the Iñupiaq, masks are typically less elaborate than those made by their Yup'ik neighbors to the south-east, and usually smaller, covering only the face.