Ōpeke marae is located south of Ōpōtiki at the entrance to the Waioeka Gorge. It belongs to the hapū Ngāti Īrapuaia (also known as Ngāti Ira) of Whakatōhea iwi.
The whare tipuna is Irapuaia, and the wharekai is Te Kurapare. The marae connects ancestrally to Mataatua waka, the maunga Mātiti and Ruahema, and the awa Te Awa a Tamatea (also Waioweka). Ōpeke is also known as Ōpekerau, Waioeka or Waioweka.