Thomas Sheridan (1687 – 10 October 1738) was an Anglican divine, essayist, playwright, poet, schoolmaster and translator. He is chiefly remembered for his friendship with Jonathan Swift.
He was born in Cavan, Ireland, the son of James Sheridan, and grandson of the Reverend Dennis Sheridan. Two of his uncles were William Sheridan, Bishop of Kilmore and Ardagh and Patrick Sheridan, Cloyne, the Bishop of Cloyne. After graduating from Trinity College, Dublin, he married Elizabeth MacFadden and the couple first lived in Dublin in King James's Mint. He inherited from his father-in-law a substantial property at Quilca in County Cavan. He ran a school in Capel Street, Dublin in the 1720s whose pupils included children of many prominent families such as Anthony Foster, the future Chief Baron of the Irish Exchequer, and Philip Tisdall, the future Attorney General for Ireland.
He was father of Thomas Sheridan, a celebrated actor and elocutionist, who was in his turn the father of the celebrated playwright Richard Brinsley Sheridan; he had two other sons and one daughter.
In 1725 he was appointed a royal chaplain, but preached a sermon which was considered by some to be politically suspect, and his appointment was cancelled. In compensation he was given a living at Drumlane in Cavan and in 1735 became headmaster of the Cavan Royal School where he remained for three years. Other appointments he is reputed to have applied for were the position of Dean of Kilmore and the position of headmaster of the Royal School in Armagh, but neither were successful.