Bidayuh suna ne na gama gari don yawancin kungiyoyin asalin da aka samo a kudancin Sarawak, Malaysia da arewacin West Kalimantan, Indonesia, a tsibirin Borneo, waɗanda suke da kamanceceniya da yare da al'ada (duba kuma batutuwan da ke ƙasa). Sunan Bidayuh na nufin 'mazaunan ƙasa'. Asali daga yammacin Borneo, an fara amfani da sunan gama gari Land Dayak a lokacin Rajah James Brooke, White Rajah na Sarawak. A wasu lokuta, ana kiransu da ƙananan mutanen Klemantan . Sun kasance ɗaya daga cikin manyan indan asalin ƙasar a cikin Sarawak da Yammacin Kalimantan kuma suna zaune a cikin garuruwa da ƙauyuka kusa da Kuching da Serian a cikin jihar Malaysia ta Sarawak, yayin da a lardin Indonesiya na West Kalimantan sun fi yawa a arewacin Sanggau Regency . A cikin Sarawak, yawancin Bidayuh ana iya samun su cikin 40 kilomita arba'in daga yankin da aka sani da Greatching Kuching, a tsakanin Kuching da Serian Division . Su ne kabilu na biyu mafi girma a Dayak a Sarawak bayan Iban kuma ɗayan manyan kabilun Dayak a Yammacin Kalimantan. Yankunan Bidayuh da ke cikin Sarawak sune Lundu, Bau, Penrissen, Padawan, Siburan, da Serian .