Lyda Morehouse (born November 18, 1967) is a science fiction and fantasy author. Her first four books, the LINK Angel series (Archangel Protocol, Fallen Host, Messiah Node, and Apocalypse Array), blend cyberpunk technology with unconventional religious themes. She is the winner of multiple national awards, including the Philip K. Dick Award's Special Citation of Excellence (2005), Shamus Award for Original Paperback featuring a Private Investigator (2001), and the Barnes & Noble Maiden Voyage Award for debut science fiction novel (2001).
Under the name Tate Hallaway, Morehouse also wrote the Garnet Lacey series (Tall, Dark and Dead, Dead Sexy, Romancing the Dead, and Dead If I Do. She also wrote the short story "Fire and Ice and Linguini for Two", appearing in the anthology Many Bloody Returns.