Horace Annesley Vachell (30 October 1861 – 10 January 1955) was a prolific English writer of novels, plays, short stories, essays and autobiographical works.

He went on to write over 50 volumes of fiction including a popular school story, The Hill (1905), which gives an idealised view of life at Harrow and of the friendship between two boys.

It was "a book of friends; of quaint human characters against the background of a shop for faked antiques and genuine love.

Although some fiction, like the stories in Bunch Grass (1912), is set in American ranching country, much of his writing concerns a comfortably prosperous English way of life which was echoed in Widcombe Manor, his house near Bath, and his old-fashioned, distinguished appearance and manner.

He died on 10 January 1955 in Bath, and is buried in the churchyard of St Thomas à Becket, adjacent to Widcombe Manor.