Sikyátki is an archeological site and former Hopi village spanning 40,000 to 60,000 square metres (400,000 to 600,000 ft²) on the eastern side of First Mesa, in what is now Navajo County in the U.S. state of Arizona. It was inhabited by Kokop clan of the Hopi from the 14th to the 17th century. Jesse Walter Fewkes led a Smithsonian Institution funded excavation of the site in 1895. During the excavations many well preserved pottery shards were found. The designs on the pottery shards inspired the artist Nampeyo; sparking the Sikyátki revival in polychrome pottery.
Sikyátki, which means "Yellow House" in the Hopi language, according to oral tradition was burned and its population exterminated by the neighboring village of Wálpi. The dispute erupted into violence when a villager from Sikyátki cut off the head of a sister of a man from Wálpi who had offended him.