Kate Summerscale (born in 1965) is an English writer and journalist.
She won the Samuel Johnson Prize for Non-fiction in 2008 with The Suspicions of Mr Whicher or The Murder at Road Hill House and won a Somerset Maugham Award in 1998 (and was shortlisted for the 1997 Whitbread Awards for biography) for the bestselling The Queen of Whale Cay, about Joe Carstairs, 'fastest woman on water'.
As a journalist, she worked for The Independent and The Daily Telegraph and her articles have appeared in The Guardian, The Daily Telegraph and The Sunday Telegraph. She stumbled on the story for The Suspicions of Mr Whicher in an 1890s anthology of unsolved crime stories and became so fascinated that she left her post as literary editor of The Daily Telegraph to pursue her investigations. She spent a year researching the book and another year writing it.
She has also judged various literary competitions including the Booker Prize in 2001.