Basil William Maturin (15 February 1847 – 7 May 1915) was an Irish-born Anglican priest, preacher and writer who later became Catholic.
He was born in Ireland in 1847 to William Basil and Jane (Cook) Maturin and educated at Trinity College, Dublin; he was a grandson of writer Charles Maturin and a second cousin of Oscar Wilde.
After going on retreat with the Cowley Fathers (the Society of St. John the Evangelist), Maturin decided to join their order.
Maturin was also author of several books on religious and psychological topics, including Some Principles and Practices of the Spiritual Life (1896), Practical Studies on the Parables of Our Lord (1899), Self-Knowledge and Self-Discipline (1905, later abridged as Christian Self-Mastery), Laws of the Spiritual Life (1907) and The Price of Unity (1912).
In 1915, at the age of 68, he made a successful preaching tour of the United States, booking a return passage on the Cunard Line's RMS Lusitania.