Sarah Blake is an American writer based in Washington D.C.

Her debut novel Grange House, set in Victorian era Maine, was published in 2001.

Her second, The Postmistress, a story set in Second World War Massachusetts and London, was published in 2010, and a third, The Guest Book, the story of two intertwined families in twentieth-century Germany and the U.S., appeared in 2019.

Blake taught school and college-level English in Colorado and New York for several years and has taught fiction workshops at various institutions.

The Postmistress received a favourable review from The New York Times, which compared it to Kathryn Stockett's The Help.