- Unnatural Immortal
- Unnatural Journeys
- Unnatural Secrets
- Unnatural Selection
- Uno scomodo cappotto di legno
- Unpardonable Sin
- Unpleasant Futures
- Unraptured
- Unravelled
- Unreal Encounter
- Unreliable
- Unrequited
- Unrequited Death
- Unrest
- Unsaved: The Small Hours, Book One
- Unseaming
- Unseen
- Unseen Things
- Unsettled Dreams
- Unspeakable Desires
- Unstable
- Untamed and Uncut
- Untcigahunk: The Complete Little Brothers
- Unter den Lebenden
- Unter Toten 2
- Unter Toten 3
- Until Death
- Until I Wake
- Untold Paranormal Police Stories
- Untote: Vier Romane
- Unwanted (Horror Short Story)
- Unwanted Room
- Unwashed Stars
- Unwilling
- Unworthy
- Unworthy Sacrifice
- Unzipped: The Mind of a Madman
- Uomini e spettri
- Uova Fatali
- Up In Smoke: Five Supernatural Stories
- Up the Wolves
- Upiorne opowieści po zmroku
- Upiorne Święta
- Upiór opery
- Upon a Midnight, Clear
- Upon the Shadow of Nothing
- Uprising
- Urangst
- Urban Crime Short Stories
- Urban Decay
- Urban Horror 3: Five More Stories
- Urban Horror Volume 2: Four More Short Horror Stories
- Urban Horror: Doors Short Story by Richard GK Stark
- Urban Horror: Four Short Horror Stories
- Urban Legends
- Urban Nightmares: Tales of Horror and Wonder
- Urban Shadows
- Urokliwy i porażający
- Ursule Mirouët
- Ursus
- User Pays
- Usher's Passing
- Usual Monsters
- Utopian Massacre
- Utopiatrie
- Uønsket passager