Holly Sarah Throsby is an Australian musician and novelist.

Her work as a solo artist has produced six albums. She was nominated for an ARIA Award for Best Female Artist in 2006 for Under the Town; and in the same category in 2008 for A Loud Call. In 2011, she was nominated for an ARIA Award for Best Children's Album for See!, her album of alternative children's songs. Throsby has toured extensively both internationally and in Australia, with artists including Joanna Newsom, Paul Kelly, Sun Kil Moon, Devendra Banhart, and The Tallest Man on Earth.

Throsby is a member of Seeker Lover Keeper, with fellow singer-songwriters, Sally Seltmann and Sarah Blasko. They released an album of the same name in June 2011, which peaked at No. 3 and was nominated for an ARIA Music Awards of 2011 for Best Alternative Album in that year. The band's second album, Wild Seeds (2019) and was nominated for an ARIA Music Awards of 2019 for Best Adult Contemporary Album. The album was accompanied by three music videos starring Australian actors Magda Szubanski, Madeleine Madden, and Yael Stone.

Throsby's debut novel, Goodwood, was published by Allen & Unwin on 28 September 2016. Goodwood came in at number 7 on the ABC's Book Club's Top Ten and was number 3 on Dymocks’ list of the Best Books of 2016. Goodwood has been since been shortlisted for an Indie Book Award, two Australian Book Industry Awards, two Davitt Awards (from Sisters in Crime), a Ned Kelly Award, and the Barbara Jeffris Award. Her second novel, Cedar Valley, was published in September 2018. It was longlisted for an Indie Book Award and a Davitt Award. Throsby's third novel, Clarke, was published in 2022.