- UNSTERBLICH mein (The Curse 1)
- Unsterbliche
- UnSung
- Unsung Hero
- Unsuspecting Friends
- Untalented
- Untamed Desire
- Untamed Desire : Dragon Threesome Romance Collection
- Untamed Gift
- Untamed Instinct
- Untamed Reaper
- Untamed: The Jade Forest Chronicles 5
- Unter dem Banner des weißen Hirsches
- Unter dem Drachenmond
- Unter dem Sonnenuntergang
- Unter der Blutsonne
- Unterbruecken (A Wiener Blut Short Story)
- Unterhalb des Horizonts
- Unterwegsgeschichten
- Untethered
- Untethered: A Magic iPhone Anthology
- Unthinkable
- Conquer the Kingdom
- Untied Shoelaces of the Mind 2011 Anthology
- Until Chelsea Rises
- Until Death
- Until You..
- The Janus Affair
- Untitled (Strange Allies Novel #6)
- The Star and the Strange Moon
- Forever
- Untitled: A Fairy Tale
- UNTITLED: A Short Story
- Unto
- Untold Adventures
- Untold Stories from the World of Myrrah
- Untold Tales: Books 1-3
- Untold Tales: Books 4-6
- Untold Tales: The Complete Series
- Untot lebt sichs auch ganz gut!
- Untouchable
- Untouchable Beauty
- Untouchable Girl
- Untranslatable
- Untruth, Untruth
- Unusual Circumstances: Fantastical Short Shorts Vol I.
- Unusual Girl: Qing Ying
- Unusual Happenings: Tales of Death, Dreams and Dimensions
- Unusual Mate : Sci-Fi Alien Romance Collection
- Unusual People
- Unusual Pleasures
- Unusual Practices
- Unveiling Secrets
- Unveiling the Past
- UNVERGÄNGLICH wir (The Curse 3)
- Unverzehrtes Leben
- Unwanted Ghost
- Unwanted Witch
- Unwashed Fiction
- Unwept
- Unwilling
- Unwilling Souls
- Unwonted Spellweavers
- Unwrap Me
- Unwrapped Sky: A Caeli-Amur Novel 1
- Unwritten
- UnZombies
- Un’impresa da eroi (Libro #1 in l’anello dello stregone)
- Uomo Avvisato, mezzo Salvato
- Uomo in fuga
- Up Against Mooneye
- Up and Down
- Up From Hell
- Up from Slavery; an Unfinished Journey
- Up from the Deep, Deep Dark
- Up From the Grave
- Up in Smoke
- Up in Smoke (Silver Dragons Book Two)
- Up in the Air
- Up In the Air: An Adult Fantasy
- Up on the Rooftop
- Up the Airy Mountain
- Up to Our Asses in Alligators
- Up with Lo
- Upadła Świątynia
- Updraft
- Upheaval of Feng City