Thomas F. Donnelly (1 January 1874 – 9 October 1948) was a Liberal party member of the House of Commons of Canada. He was born in New Carlisle, Quebec and became a physician, principal and teacher.

Donnelly attended Bishop's University and McGill University, attaining a Masters of Arts degree. For three years, he was principal for the high school in Lennoxville, and taught for another three years at Westmount Academy.^[1]

He was first elected to Parliament at the Willow Bunch riding in the 1925 general election then re-elected there in 1926 and 1930. When riding boundaries were revised in 1933, Donnelly sought election at Wood Mountain which he won in the 1935 election. He was re-elected for one further term in 1940 after which he did not seek another term in Parliament.