"Arkham" is a fictional city in Massachusetts, part of the Lovecraft Country setting created by H. P. Lovecraft and is featured in many of his stories, as well as those of other Cthulhu Mythos writers.
Arkham House, a publishing company started by two of Lovecraft's correspondents, August Derleth and Donald Wandrei, takes its name from this city as a tribute.
In the 1933 story "The Thing on the Doorstep", Lovecraft described
:the ancient, mouldering, and subtly fearsome town...witch-cursed, legend-haunted Arkham, whose huddled, sagging gambrel roofs and crumbling Georgian balustrades brood out over the centuries beside the darkly muttering Miskatonic.
Arkham is the home of Miskatonic University, which figures prominently in many of Lovecraft's works. The institution finances the expeditions in both ''At the Mountains of Madness'' (1936) and "The Shadow out of Time" (1936). Walter Gilman, of "The Dreams in the Witch House" (1933), attends classes at the university. Other notable institutions in Arkham are the ''Arkham Historical Society'' and the ''Arkham Sanitarium'' (''sic'').