Thomas Bulfinch was an American author born in Newton, Massachusetts, known best for Bulfinch's Mythology, a posthumous combination of his three volumes of mythologies.

Thomas Burke was a British author. He was born in Clapham Junction, London.

Thomas Carlyle was a British essayist, historian, and philosopher from the Scottish Lowlands. A leading writer of the Victorian era, he exerted a profound influence on 19th-century art, literature, and philosophy.

Thomas Chandler Haliburton was a Nova Scotian politician, judge, and author. He made an important political contribution to the state of Nova Scotia before its entry into Confederation of Canada. He was the first international best-selling author of fiction from what is now Canada. In 1856, he immigrated to England, where he served as a Conservative Member of Parliament. He was the father of the British civil servant Lord Haliburton and of the anthropologist Robert Grant Haliburton.

Thomas Chatterton was an English poet whose precocious talents ended in suicide at age 17. He was an influence on Romantic artists of the period such as Shelley, Keats, Wordsworth and Coleridge.

Thomas Colley Grattan was an Irish novelist, poet, historian and diplomat. Born in Dublin, he was educated for the law, but did not practise. He wrote a few novels, including The Heiress of Bruges ; but his best work was Highways and Byways, a description of his Continental travels, of which he published three series, amounting to eight volumes. He also wrote a history of the Netherlands and books on America. He was for some time British Consul at Boston in the United States and assisted in the negotiations leading to the Webster–Ashburton Treaty in 1842.

Thomas Crofton Croker was an Irish antiquary, best known for his Fairy Legends and Traditions of the South of Ireland (1825–1828), and who also showed considerable interest in Irish song and music.

Thomas Penson De Quincey was an English writer, essayist, and literary critic, best known for his Confessions of an English Opium-Eater (1821). Many scholars suggest that in publishing this work De Quincey inaugurated the tradition of addiction literature in the West.

Thomas Dekker was an English Elizabethan dramatist and pamphleteer, a versatile and prolific writer, whose career spanned several decades and brought him into contact with many of the period's most famous dramatists.

Thomas Frognall Dibdin was an English bibliographer, born in Calcutta to Thomas Dibdin, the sailor brother of the composer Charles Dibdin.