Sarah Gailey is an American author of fantasy, science fiction, and mystery novels, short stories, and comics.

Gailey first became well known for their 2017 American Hippo duology, consisting of the novellas River of Teeth and Taste of Marrow.

[10][11][12] The pair of novellas is about the hypothetical of if hippos had been imported into southern US bayou country as food stock as well as a counteractive measure against invasive water hyacinth; and inspired by the real proposed House Resolution 23261 (1910).

It was well-received (for its interesting characters, creative worldbuilding, and fast-paced action) by critics, who had minor grievances with the novella format and structural length, transition decisions, and the failed chance to depict indigenous populations accurately.

[21] They continued their work in comics with a 12-issue Buffy the Vampire Slayer comics arc titled The Vampire Slayer (2022–2023)[22][23] and an original science fiction series titled Know Your Station (2022–2023),[24][25] co-created with artist Liana Kangas.