The Nevis skink (Oligosoma toka) is a nationally vulnerable species of skink native to New Zealand. It is named in honour of the location of its habitat, the Nevis valley.
As of 2012 the Department of Conservation (DOC) classified the Nevis skink as Nationally Vulnerable under the New Zealand Threat Classification System.
The Nevis skink can be mistaken for the more common northern grass skink (Oligosoma polychroma), though tends to have a heavier body build and a less-streamlined head.