Alvan Cullem Gillem II (April 20, 1917 – September 3, 2009) was a United States Air Force officer who reached the rank of lieutenant general.

He received a congressional appointment to the United States Military Academy for the fall of 1936, from which he graduated with the rank of second lieutenant in the spring of 1940.

In April 1943 he went overseas as a staff officer at headquarters of the Mediterranean Allied Air Forces in North Africa.

Later he was transferred to the 31st Fighter Group in Italy where he learned to fly Spitfires and P-51 Mustangs, and was credited with shooting down three enemy planes in air-to-air combat.

In June he returned to the United States to serve in the Plans Division of the Headquarters, Army Air Forces in Washington, D.C.

In May 1964 Gillem was transferred to SAC headquarters at Offutt Air Force Base, Nebraska, as Deputy Director of Operations.