Hyperborea is a collection of fantasy short stories by Clark Ashton Smith, edited by Lin Carter.

The stories were originally published in various fantasy magazines from the 1930s to the 1950s, notably Weird Tales.

[1] The book collects one prose poem and ten tales of the author's Hyperborean cycle, set on a prehistoric lost northern continent Smith named for the mythological land of Hyperborea, with an introduction and map by Carter.

The editor also includes in the collection four additional tales of Smith's from what he took to be a similar but more fragmentary sequence of stories.

"[3] Robert FitzOsbert in Luna Monthly said "Hyperborea, with all of Smith's work, is Dunsanean in vision, Lovecraftian in its brooding, even sinister atmosphere, almost Howard-like in evoking entire fantasy worlds more through patient cultivation of epic myth than through sterile pseudo-science that marks the worst of today's efforts in this genre.