Platoon Sergeant Joseph Rudolph Julian (April 3, 1918 – March 9, 1945) was a United States Marine who was posthumously awarded the United States' highest military honor – the Medal of Honor – for his heroism and sacrifice of life in 1945 in the Battle of Iwo Jima during World War II.

He graduated from Southbridge High School, and in January 1942, he enlisted in the United States Marine Corps Reserve.

Following basic training at Parris Island, South Carolina, he became a Drill Instructor, and, later, was assigned to the 5th Marine Division.

He was killed in action on Iwo Jima on March 9, 1945, following a one-man assault on enemy-occupied trenches and fortified positions.

Following the war, Sgt Julian's remains were reinterred at Long Island National Cemetery, Farmingdale, New York, at the request of his parents.