- Unmasked
- Unmasked (New Adult Romance)
- Unmasked: A Billionaire's Beck and Call, Short Story (The Billionaire's Beck and Call, #4)
- UNMASKED: The Complete Series
- Unmasking Kelsey
- Unmistakable
- Unmoralische ... Immoral
- Unnatural Omega
- Unnatural Order
- Uno di noi
- Uno scheletro sepolto
- Uno sconosciuto accanto a me. Chaos
- Uno sguardo dal passato
- Uno sparo nel buio (eLit)
- Uno sporco gioco
- Uno's Truth
- Unohditko minutkin
- Unorthodox
- Unpredictable
- Unpredictable Love
- Unprepared Daddy
- Unpublished
- Unquenchable Cravings: Gamble on Love
- Unravel
- Unraveled
- Unraveled by Blood, A Sweetblood World Vampire Romance
- Unraveling
- Unraveling Fayth
- Unravelling His Mark
- Unrequited Death
- Unrequited Death
- Unrequited Love
- Unruly
- Uns hat Gott vergessen
- Unsaddened
- Unsafe Haven
- Unseen Messages
- UnSettled
- Unsettled Scores
- Unshackled (Slick Rock 28)
- Unsicherheit
- Unsolved Abduction
- Unspeakable
- Unspoken Bonds
- Unspoken Truths
- Unstable
- Unstable Ground
- Unstrapped
- Unsure
- Unsweetened
- Untainted
- Untamed Lust
- Untamed Passion
- Untamed Pleasure
- Unter die Haut
- Unter Feuer 2: Band 1
- Unter Feuer 2: Band 2
- Unter Feuer 2: Band 3
- Unter Feuer 3
- Unter Feuer: Band 6
- Unter Feuer: Band 7
- Unter ihrer Haut: Eine Bad Boy Milliardär Liebesroman
- Unter Schutz des Wolfs
- Unter Seiner Kontrolle
- Unthinkable
- Until Dark
- Until Death
- Until Death: a thrilling psychological drama with a jaw-dropping twist
- Until Forever (Maple Grove 13)
- Until My Final Breath
- Until Never
- Until Now
- Until Proven Innocent
- Until Thanksgiving
- Until the Day You Die
- Until the End
- Until The End
- Until Tomorrow
- Until Us
- Until We Say Goodbye
- Until You (A Standalone Romantic Thriller)
- Until You Find Me
- Untold Story of a Common Boy
- Untouched Omega
- Untraceable
- Unveiled Hearts
- Unveiled Truth
- Unveiled: Laid Bare #2