Thomas Macnamara Russell, English admiral
Admiral Thomas McNamara Russell (died 22 July 1824) was an admiral in the Royal Navy. Russell's naval career spanned the American Revolutionary War, French Revolutionary War and Napoleonic War.

Admiral Russell is best remembered for his command of a squadron in the North Sea when he took possession of Heligoland after Denmark came into the war on the side of the French in 1809. His career was also notable due to the single-ship action fought between the 20-gun HMS Hussar and the 32-gun French frigate Sybille in which he captured the French frigate despite her superior number of men and guns. There is controversy surrounding the event in that the capture happened towards the end of the American Revolution and the British officers claimed that the French were flying false colours and a distress flag during the action. Whilst it was common for ships of opposing nations to lure, or escape from, one another with false colours it was considered dishonourable to continue flying false flags once the action had begun. Similarly, the flying of a flag of distress was not an acceptable ruse de guerre, as it would dissuade shipping from approaching a vessel in genuine distress.