Thomas Lynch, Jr. (August 5, 1749 – 1779), was a signer of the United States Declaration of Independence as a representative of South Carolina.
He was born in Winyah, Prince George's County, South Carolina, the son of Thomas Lynch. He was schooled at the Indigo Society School in Georgetown before being sent to England, where he studied at Eton College and at Gonville & Caius College, Cambridge. He studied law in London, returning to America in 1772. He became a company commander in the 1st South Carolina regiment in 1775 and was elected to the Continental Congress. He was taken ill at the end of 1776 and he sailed, with his wife, for the West Indies. Their ship disappeared at sea. Before he departed for his ill fated voyage, he made a will. The will stipulated that heirs of his female relatives must change their surname to Lynch in order to inherit the family estate. The family estate still stands in South Carolina - see Hopsewee.com. He was an only child.
His stepfather was South Carolina Governor William Moultrie; a nephew was South Carolina Governor James Hamilton Jr.