Leonard Dudley Heaton (19 November 1902 – 10 September 1983) was Surgeon General of the United States Army from 1959 to 1969.

With the entrance of the United States into World War II, Heaton was assigned to the European Theater of Operations.

He held many posts including being the commander of the Walter Reed General Hospital in Washington, DC.

Among his many patients included President Dwight D. Eisenhower, Secretary of State John Foster Dulles, and Generals of the Army Douglas MacArthur, and George C. Marshall.

Heaton's funeral service was held at the Village Chapel in Pinehurst, North Carolina with Chaplain Harry Duncan officiating.