:for the town in Afghanistan see Kayan, Afghanistan Kayan is name of a tribe found in Borneo island. The Kayan people are categorized as a part of the Dayak people of Borneo. Being an indigenous tribe in central Borneo, Kayans are similar to their neighbors the Kenyah tribe with which they're grouped together under the Bahau ethnic group. The population of the Kayan ethnic group may be some 27,000. They are part of a larger grouping of people referred to collectively as the Orang Ulu, or upriv… (More on Kayan)