The United States of Atlantis
Harry Turtledove
Lost Continent of Atlantis (2)
The Unit
Ninni Holmqvist
The Unicorn Trade
Poul Anderson & Karen Anderson
The Unforsaken Hiero
Sterling E. Lanier
Hiero Desteen (2)
Unfallen Dead
Mark Del Franco
Connor Grey (3)
Uneasy Alliances
Robert Asprin & Lynn Abbey
Thieves' World (11)
Undying World
Roland J. Green
Richard Blade Adventures (8)
Undone
James Patrick Kelly
Undertow
Elizabeth Bear
The Undersea Tube
L. Taylor Hansen
Underground
Andrew McGahan
Under Twin Suns
Andrew J. Offutt
Spaceways (8)
Under the Dome
Stephen King
Under Pressure
Frank Herbert
Under Fire
Kenneth von Gunden
K-9 Corps (2)
Under Arctic Ice
Harry Bates & Rand Miller
The Unconquered Country: A Life History
Geoff Ryman