Admiral Sir Thomas Briggs GCMG (1780 – 16 December 1852) was an officer of the British Royal Navy who served during the French Revolutionary and Napoleonic Wars, and went on to be Commander-in-Chief, Portsmouth.

[1] Briggs was promoted to lieutenant on 28 September 1797, and was transferred from Aigle to Ville de Paris, flagship of Admiral Earl St. Vincent off Lisbon, and shortly afterwards moved to Princess Royal, flying the flag of Rear-Admiral Thomas Frederick off Cádiz.

In March 1801 Captain Manley Dixon of Genereux at Port Mahon, sent Briggs to Rear-Admiral Sir John Borlase Warren's fleet with the news that Admiral Honoré Ganteaume had sailed from Toulon bound for Egypt.

Briggs was then engaged in the expedition to Egypt under Lord Keith and Sir Ralph Abercromby, for which he was awarded the Turkish Gold Medal and the Order of the Crescent, and was promoted to post-captain on 24 July 1801.

There, on 28 January 1810, he captured the privateer L' Henri, of 8 guns and 57 men, and proved of material service in disembarking the troops at the reduction of the Île de France in December 1810.