Koriniti is a settlement 47 kilometres upriver from Whanganui, New Zealand, home to the Ngāti Pāmoana hapū of the iwi Te Āti Haunui-a-Pāpārangi.
The Māori settlement of Operiki was one of the larger on the Whanganui River, with a population of about 200. In 1848 the village was abandoned and a new one built in better agricultural land nearby at Otukopiri, renamed Koriniti by the missionary Richard Taylor, a Māori transliteration of Corinth.
Across the river from Koriniti, and reachable only by boat or cable car, is the Flying Fox lodge.