Kumai may refer to:
Kumai, subdistrict in Central Kalimantan, Indonesia Kumai language, aka Wahgi, a Trans–New Guinea language spoken in the highlands of Papua New Guinea Kumai River, river in Central Kalimantan Kumai (village), village in the Indian state of Bihar Kumai Bahun, better known as Kumaoni people Kumai (surname)
See also Kumaoni (disambiguation)