Reverend William Hickey, also known as Martin Doyle (1787 – 24 October 1875) was an Irish writer and philanthropist.
A descendant of the ÃÂ hÃÂceadha family of physicians, he was the eldest son of Rev. Ambrose Hickey, Church of Ireland rector of Murragh, County Cork. He graduated from St. John's College, Cambridge, and received his M.A. from the University of Dublin. He was ordained in 1811 and appointed curate of Dunleckny, County Carlow. Between then and 1834 he served at Bannow, Kilcormick, Wexford and Mulrankin, remaining at the latter till his death. A Compendium of Irish Biography says of him:
Hickey, under the pseudonym Martin Doyle, served as an editor for The Irish Farmer's and Gardener's Magazine.
William Hickey was the father of J. S. Hickey, Protestant rector of Goresbridge, and grandfather of the author and poet, Emily Henrietta Hickey.