John Athelstan Laurie Riley (10 August 1858 – 17 November 1945) was an English hymn writer and hymn translator.
Riley was born in Paddington, London, and attended Pembroke College, Oxford, where obtained his BA in 1881 and MA in 1883.
Active in the Anglo-Catholic wing of the Church of England, he energised the development of The English Hymnal (1906) and was chairman of its editorial board.
His best-known hymn is "Ye Watchers and Ye Holy Ones".
Finding the manor house in a ruined condition, he undertook an elaborate restoration (or "imaginative reconstruction", which has been criticised as turning the building into a French-style château).
The reconstruction was carried out 1910–1913 by C.