William Sheridan (c. 1635 – 3 October 1711) was a 17th-century Irish clergyman, who was Bishop of Kilmore and Ardagh between 1682 and 1691, having previously served as Dean of Down from 1669 to 1682. Sheridan was born at , Cavan, the son of Dionysius (or Dennis) Sheridan, a former Catholic priest who had converted to Protestantism. His godfather was William Bedell, Protestant Bishop of Kilmore. Sheridan's siblings included Patrick Sheridan, Cloyne, Protestant Bishop of Cloyne (1679-1682) and Sir Thomas Sheridan (politician), Chief Secretary of State for Ireland (1687-1688). William Sheridan graduated from Trinity College, Dublin, and became chaplain to Sir Maurice Eustace, Lord Chancellor of Ireland. After Eustace's death in 1665, he became chaplain to James Butler, 1st Duke of Ormonde.