Thomas Pitt (July 5 1653 – April 28 1726) was a British merchant involved in trade with India. He at first came into conflict with the British East India Company, however this was settled and the company appointed him governor of Madras.

He bought a diamond which he later sold for considerable profit, which earned him the nickname "Diamond Pitt". He was married to an Anglo-Indian lady, Jane Innis.

He was the father of Thomas Pitt, 1st Earl of Londonderry and also had a grandson named Thomas Pitt (died 1761) through his older son Robert , who was the father of William Pitt the Elder.

Sources

• Moore, Gloria. The Anglo-Indian Vision , 1986.