Abbott was born in Lennoxville, Quebec (now Sherbrooke, Quebec). He attended Bishop's University, graduating with a Bachelor of Arts. He then attended McGill Law School, but interrupted his studies to sign up for service overseas, in 1916. Returning from the Great War, he completed his legal studies, earning his Bachelor of Civil Law. He then went to France to attend the Université de Dijon.[3] Returning to Canada, he was called to the Barreau du Québec in 1921 and practised law in Montreal with the firm of Fleet, Phelan, Fleet & Le Mesurier.
Abbott was appointed to the court directly from the federal Cabinet, where he had served the previous seven years as Finance Minister.[2] The appointment is considered one of the most controversial in the history of the Supreme Court.[2] It was the first appointment directly from Cabinet since the 1911 appointment of Louis-Philippe Brodeur.[2] As of 2025, Abbott was the last justice of the Supreme Court of Canada appointed directly to the Court from the Cabinet, and the last justice to have held elected office prior to his appointment.[citation needed]
There is a Douglas Charles Abbott fonds at Library and Archives Canada. Archival reference number is R4773 (former archival reference number MG32-B6).[4]