Thomas de Dent, or Thomas Dyvelyn, or Thomas of Dublin (died after 1361) was an English born cleric and judge who held high office in Ireland, and was praised as a diligent and hard working Crown official, who damaged his health through overwork. He was born at Dent, then in the West Riding of Yorkshire (now in Cumbria). During his years in Ireland he was sometimes known as Thomas Dyvelyn, which was an early form of "Thomas of Dublin".He took holy orders, and became a clerk in the Royal service. He is first heard of as the defendant in a lawsuit for trespass at Ingleton, North Yorkshire.