Sara Warneke, better known by her pen name Sara Douglass, was an Australian fantasy writer who lived in Hobart, Tasmania. She was a recipient of the Aurealis Award for best fantasy novel.

Douglass was born in Penola, South Australia. She attended Annesley College, in Wayville, a suburb of Adelaide. She studied for her BA while working as a Registered Nurse, and later completed her PhD in early modern English history. She became a lecturer in medieval history at La Trobe University, Bendigo. While there, she completed her first novel, BattleAxe, which launched her as a popular fantasy author in Australia, and later as an international success.

Until the mid-2000s, Douglass hosted a bulletin board on her website, with the aim of encouraging creative thinking and constructive criticism of others' work. She maintained an online blog about the restoration project of her house and garden entitled Notes from Nonsuch in Tasmania.