Sarah Rees Brennan (born 21 September 1983)[1] is an Irish writer best known for young adult fantasy fiction.

She obtained a Creative Writing MA from Kingston University in London[4] and worked as a librarian in Surrey, England[5] before moving to Dublin where she currently lives.

The publishing house Simon & Schuster obtained a three-book contract deal with her which involved an undisclosed six-figure sum.

[7] Rees Brennan is a cancer survivor, having been diagnosed with stage 4 Hodgkins Lymphoma in 2017.

[14] In 2017, The New York Times included In Other Lands on their list of the fall's best young adult fantasy novels.