Waipatia is an extinct genus of odontocetes from the late Oligocene (Chattian) of New Zealand.

The type species, Waipatia maerewhenua is known from a single skull found near 45° South in Otago.

[3][4] "Uncamentodon" was informally coined for M. hectori in a table by Rothausen in a 1970 paper, but the lack of a diagnosis or description made it a nomen nudum.

Finally in 2015, M. hectori was recognized as a second species of Waipatia based on preparation of additional material included in the holotype.

This prehistoric cetacean-related article is a stub.