The House on the Borderland is a supernatural horror novel by British fantasist William Hope Hodgson. The novel is a hallucinatory account of a recluse's stay at a remote house, and his experiences of supernatural creatures and otherworldly dimensions.

American horror writer H. P. Lovecraft listed The House on the Borderland and other works by Hodgson among his greatest influences, and Terry Pratchett has called the novel "the Big Bang in my private universe as a science fiction and fantasy reader and, later, writer".

Tonnison and Berreggnog make a fishing holiday to the remote village of Kraighten in rural Ireland. On the third day of their stay, they stumble upon the ruins of a strangely shaped house on a large lake. They discover the mouldering journal of the Recluse, an unidentified man who recorded his last days in the house before its destruction.