Rear Admiral Sir Thomas Troubridge, 1st Baronet (22 June 1757 – 1 February 1807) was a Royal Navy officer.

[3] He entered the Royal Navy on 8 October 1773 and, together with Horatio Nelson, served in the East Indies in the frigate HMS Seahorse.

[3] On his return he was appointed to command Culloden, a third-rate ship of the line, in which he fought at the Battle of the Hyères Islands, led an unsuccessful pursuit of a French squadron in the Aegean Sea, and led the line at the Battle of Cape St Vincent, being commended for his courage and initiative by Admiral Sir John Jervis.

[3] In August 1798, when getting into position for the attack on the French fleet, Culloden ran aground on a shoal near the entrance to Aboukir Bay and was consequently unable to take any part in the Battle of the Nile.

[5] Promoted to a rear-admiral on 21 April 1804,[6] Troubridge was appointed to command the eastern half of the East Indies Station, and he went out in Blenheim[3] with his resignation from the Admiralty Board becoming effective in May 1804.