Alexandra Oliva is an American writer of speculative fiction.
Oliva grew up in the Adirondack Mountains. She graduated from Yale University and from The New School.
Her first published novel, The Last One, takes place in a post-apocalyptic setting and features a protagonist who is starring in a reality television program. It was selected as a "Best Book of 2016" by the Seattle Times. Her third novel, The Radiant Dark, is set in an alternate timeline where an extraterrestrial species from the expolanet Ross 128 b contacts Earth in the 1980s. The New York Times described it as a "slow burn" and praised Oliva's "skillful character development".