Oku

Oku or OKU may refer to:

• Oku, Cameroon, subdivision in the Northwest Region of Cameroon
  • Lake Oku, a crater lake on the Bamenda Plateau in the Northwest Region of Cameroon
  • Mount Oku, the largest volcano in the Oku Massif, in the Cameroon Volcanic Line
• Oku language, a Grassfields Bantu language of Cameroon
• Oku people (Sierra Leone), an ethnic group of Yoruba descent in Sierra Leone.
• Ökü, a village in Azerbaijan
• Oku District, Okayama, a former district located in Okayama Prefecture, Japan
  • Oku, Okayama, a former town in the district, merged with other towns to create the city of Setouchi
• Oku (surname), a common Japanese surname
• Princess Ōku (661–702), a Japanese princess during the Asuka period in Japanese history
• OKU, IATA Airport Code for Mokuti Lodge Airport in Namibia
• Ogan Komering Ulu Regency, a province in South Sumatra, Indonesia
• Osaka Kyoiku University, a national university in Japan