Tamias is a genus of chipmunks in the tribe Marmotini of the squirrel family. The genus includes a single living species, the eastern chipmunk. The genus name Tamias means "treasurer", "steward", or "

The Xerinae are the most species-rich subfamily of squirrels, many of which are highly terrestrial. They include the tribes Marmotini, Xerini, and Protoxerini.