Thomas Weld was an English landowner who renounced his assets to enter the priesthood. He was consecrated bishop and cardinal.

Thomas Bartholomew Weld (1750–1810), known as Thomas Weld of Lulworth Castle, was a member of the English Catholic gentry, landowner, philanthropist and bibliophile. He was connected to many of the leading Catholic families of the land, such as the Bodenhams, Cliffords, Erringtons, Petres and Stourtons. He proved to be a great benefactor of the Society of Jesus in England in their educational and pastoral endeavours, as timely donor of his Stonyhurst estate in 1794. He was also a benefactor to other Roman Catholic religious and clergy. He was a personal friend of King George III. His sister-in-law was Maria Fitzherbert. After the French Revolution he hosted refugee remnants of the French royal family at his castle. He was the builder, in 1786, of the first Roman Catholic place of worship in England after the Protestant Reformation.