In Lovecraft's Shadow: The Cthulhu Mythos Stories of August Derleth is a collection of fantasy and horror short stories by American writer August Derleth.

It was released in 1998 by Mycroft & Moran in an edition of 2,051 copies.

The stories are part of the Cthulhu Mythos and several had appeared previously in the Arkham House collections: The Mask of Cthulhu (1958), The Trail of Cthulhu (1962) and Colonel Markesan and Less Pleasant People (with Mark Schorer, 1966).

In Lovecraft's Shadow contains the following tales: