"The Thing on the Doorstep" is a horror short story by American writer H. P. Lovecraft, part of the Cthulhu Mythos universe. It was written in August 1933, and first published in the January 1937 issue of Weird Tales.

Daniel Upton, the story's narrator, explains that he has killed his best friend, Edward Derby, and that he hopes his account will prove that he is not a murderer. He begins by describing Derby's life and career. Derby had been interested in the occult even as a very young boy. This is what caused him to befriend Upton. The two would chat about dark mythology in their spare time. Whenever Derby came over to chat he always used the same knocking pattern of three strokes, a pause, and then two additional strokes on the knocker. Upton had always been able to identify Derby this way. Derby's parents had always doted on him and he had a particular reliance on them, especially his mother. Her death had sent him into a depression, and it took him quite a long time to recover. Upton then tells of Asenath Waite, a female classmate of Derby's at Miskatonic University, daughter of Ephraim. Edward and Asenath soon wed after bonding over their love of the occult. Despite his qualms Derby moves into the old Crowninshield House, with three servants from Innsmouth...

Famous works of the author Howard Phillips Lovecraft: At the Mountains of Madness, The Dreams in the Witch House, The Horror at Red Hook, The Shadow Out of Time, The Shadows over Innsmouth, The Alchemist, Reanimator, Ex Oblivione, Azathoth, The Call of Cthulhu, The Cats of Ulthar, The Dunwich Horror, The Doom that Came to Sarnath, The Festival, The Silver Key, The Other Gods, The Outsider, The Temple, The Picture in the House, The Shunned House, The Terrible Old Man, The Tomb, Dagon, From Beyond, What the Moon Brings.

• Narrator: Peter Coates
• Listening Length: 1 hour 5 minutes 9 seconds