The Shastan (or Sastean) languages are an extinct language family which consists of four languages, spoken in present-day northern California and southern Oregon: Konomihu appears to have been the most divergent Shastan language.

The entire Shastan family is now extinct.

Shasta was the last language that was spoken.

Shastan has often been considered to be in the hypothetical Hokan stock.

This article related to the Indigenous languages of the Americas is a stub.