Major General John Shirley Wood was a United States Army officer who served in World War I and World War II. He is most notable for training and commanding the 4th Armored Division, which spearheaded General George S. Patton's Third Army drive across France in 1944 during World War II.

The 4th Armored Division was an armored division of the United States Army that earned distinction while spearheading General Patton's Third Army in the European theater of World War II.