H. Reuben Cohen, CC ONB QC (July 11, 1921 – October 24, 2014) was a Canadian businessman, lawyer, and the third Chancellor of Dalhousie University. Born in Moncton, New Brunswick, he received a Bachelor of Arts degree from Dalhousie University in 1942 and a Bachelor of Law degree from the Dalhousie Law School in 1944. He started a law practice in Moncton in 1945 and was created a Queen's Counsel in 1968. From 1990 to 1994, he was the third Chancellor of Dalhousie University. Reuben Cohen died on October 24, 2014 at the age of 93.