Actinidia oregonensis is an extinct species of flowering plants in the kiwifruit family, Actinidiaceae,[1] solely known from the middle Eocene sediments exposed in north-central Oregon.

The fossils were part of a group of approximately 20,000 specimens collected from 1942 to 1989 by Thomas Bones, A. W. Hancock, R. A. Scott, Steven R. Manchester, and some high school students.

[1] The seeds of Actinidia oregonensis are bilaterally symmetrical with an elongated elliptical shape and pointed tip and base.

[1] The seeds are identified as belonging to an Actinidia species by the exterior morphology and by the structure of the vascular supply system.

[1] In contrast, the seeds of the Pliocene fossil species A. foveolata of Europe range in size from 1.8–4.0 millimetres (0.071–0.157 in).