Irwin Dorfman, B.A, LL.B., LL.D., Q.C., (1908–1993) was a Canadian lawyer from Winnipeg, Manitoba, eventually becoming senior counsel with the firm of Thompson Dorfman Sweatman. In addition to a busy legal practice in the areas of taxation and corporate matters, he was active in his community and in the profession. He served as President of the Law Society of Manitoba and as the national President of the Canadian Bar Association, the first Jewish president in the Association's history.