- Una última parada
- Unafraid
- Unafraid; Leon's Son
- Unbegrenzter Sex
- Unbelievably Boring Bart
- Unblemished
- UnBlessed
- Unblinking
- UnBound
- Unbound: Stories of Transformation, Love, and Monsters
- Unbreakable
- Unbreakable Darkness
- Unbroken (A Short Story)
- Unbroken in Time
- Uncaged
- Uncaged (The Singular Menace, 1)
- Uncertain Future
- Uncertainty (Gravity series, 2)
- Unchanged
- Unchosen Mage
- Uncia or Precious Nothing (Illustrated)
- Uncivil Acts
- Unclaimed Baggage
- Unclaimed Blood Vampire Fantasy Thriller
- UNCLE ABNER, MASTER OF MYSTERIES (18 Detective Tales in One Volume)
- Uncle Abner, Master of Mysteries: 18 Detective Tales in One Volume
- Uncle Daddy
- Uncle Gobb and the Plot Plot
- Uncle Jarmin's Cheesecake Adventure!
- Uncle Jeff’S Fairy Tale Storybook for Good Little Kiddies, Etc.
- Uncle Josh's Pit
- Uncle Joshua and the Grooglemen
- Uncle Remus and Brer Rabbit
- Uncle Remus in Rhythm and Rhyme
- Uncle Remus, his songs and his sayings
- Uncle Robert's Geography (Uncle Robert's Visit, V.3)
- Uncle Rutherford's Nieces
- Uncle Sam's Boys as Lieutenants
- Uncle Sam's Boys in the Philippines
- Uncle Sam's Boys with Pershing's Troops
- Uncle Silas
- Uncle Tom's Cabin
- Uncle Tom's Cabin (Illustrated)
- Uncle Tom’s Cabin
- Uncle Wiggily's Adventures
- Uncle Wiggily's Automobile
- Uncle Wiggily's Story Book
- Unclouded Day
- Uncomfortable Conversations with a Black Boy
- Unconditional
- Unconditional Love
- Uncontrollable
- Unconventional
- Uncover
- Uncover - Die Trollfabrik
- Uncovered
- Uncovering the Mysterious Woolly Mammoth
- Uncrashable Dakota
- Und auch so bitterkalt
- Und dann kam Juli
- Und dann kamst du
- Und die Menschen blieben zu Hause
- Und Gewissheit wirst du haben
- Und morgen am Meer
- Und tschüss!
- Und wer nur Gott zum Freunde hat, dem hilft er immer wieder
- Und wer rettet mich?
- Undan för Knatten!
- Undead Ed
- Undead Ed and the Demon Freakshow
- Undead Ed and the Fingers of Doom
- Undead Girl Gang
- Undead Worlds
- Undead Worlds 2
- Undefeated: Jim Thorpe and the Carlisle Indian School Football Team