John Vincent Power (November 20, 1918 – February 1, 1944) was a United States Marine Corps first lieutenant who posthumously received the Medal of Honor for his actions during the Battle of Kwajalein in World War II.

[1] One of his math teachers at Holy Cross was Reverend Joseph T. O'Callahan, who would himself receive the Medal of Honor as a Navy chaplain in World War II.

[1] Power sailed with his unit in mid-January 1944 from San Diego harbor, and on February 1, 1944, the 24th Marines participated in the assault at Roi-Namur in the Kwajalein Atoll, Marshall Islands.

A plaque commemorating the USS Power is located at his alma mater, the College of the Holy Cross, in front of the Hogan Campus Center.

Protecting his wound with his left hand and firing with his right, he courageously advanced as another hostile position was taken under attack, fiercely charging the opening made by the explosion and emptying his carbine into the pillbox.

His exceptional valor, fortitude and indomitable fighting spirit in the face of withering enemy fire were in keeping with the highest traditions of the U.S.