Admiral Robert Lee Dennison (April 13, 1901 – March 14, 1980) was an American naval officer and aide to President Harry Truman.

[1][2] Dennison was born in Warren, Pennsylvania, and graduated from the United States Naval Academy in 1923.

Dennison held numerous commands in the United States Navy, including submarines, destroyers, and the USS Missouri (BB-63).

[3] Arleigh Burke, a former classmate of Dennison's who would one day become Chief of Naval Operations, found his career on the brink of ruin, following the Revolt of the Admirals.

[6] While in charge of the Atlantic forces, he was given the duty of blockading Cuba during the Cuban Missile Crisis.