Admiral Sir Thomas Rich, 5th Baronet (c.1733 – 6 April 1803) was a British naval officer and Member of Parliament.

He was then promoted commander of the 14-gun sloop HMS Senegal in March 1769 for service on the North America Station.

[1] In April 1775 he took command of the new 28-gun frigate HMS Enterprise and sailed to the Mediterranean Sea, where in March 1778 he captured the 16-gun American vessel Hope.

The following year they drove a French privateer ashore, captured an American schooner laden with tobacco and escorted supplies into the beleaguered port of Gibraltar, remaining there for several months.

Sir Thomas's daughter Grace married Captain Anthony Abdy, while his youngest son Henry entered politics and was created a baronet in his own right in 1863.