Thomas Tod Stoddart (1810–1880) was a Scottish angler and poet.
He was born on 14 February 1810 in Argyle Square, Edinburgh, the eldest son of Captain (later Admiral) Pringle Stoddart R.N. and his wife Frances, daughter of James Sprot. At the age of ten he was sent to a Moravian Church school in Lancashire; then returned to attend Edinburgh High School and Edinburgh University. One of his university teachers was John Wilson, in whose house Stoddart met Thomas De Quincey, Hartley Coleridge, James Hogg the Ettrick Shepherd, William Edmonstoune Aytoun, James Frederick Ferrier, Henry Glassford Bell, and other men of letters.
In 1833 Stoddart was admitted a member of the Faculty of Advocates, but never practised the law. An early passion for angling became the main business of his life. He investigated the haunts and habits of fish, and was an adept of fly-making.
Stoddart campaigned against the pollution of rivers. In the decade leading up to the Rivers Pollution Prevention Act 1876 he was involved with the Tweed Commissioners, and was involved in the trials and surveys of the fish population of the River Tweed using smolt.
His niece was the New Zealand artist, Margaret Stoddart, daughter of his brother Mark Pringle Stoddart.
With expertise in fly fishing, Stoddart published books, poems and articles on angling.