George Johnson McMillin (November 25, 1889 – August 29, 1983) was a United States Navy rear admiral who served as the 38th and final naval governor of Guam.

[4] From March 1919 to October of the same year, he served aboard the USS New Mexico as an assistant engineer officer.

[7] He oversaw a major evacuation of all United States non-military citizens on the island during his term as the political situation with Japan grew more tense.

In the summer of 1941, the evacuation began and was completed on October 17, 1941, with only one, the pregnant wife of the chief commissary steward, remaining.

Upon receiving this news and the beginning of United States involvement in World War II, McMillin ordered the evacuation of various civilian populations, the jailing of all Japanese nationals on the island, and churches, banks, and schools closed.

[10] By 5:45 a.m., it became apparent that further resistance by American Marines would do no good, and McMillin ordered the sounding of a car horn three times, which both sides recognized as a sign to cease fire.

[8] McMillin surrendered the island at 6 a.m. on December 10 when Japanese troops captured him in the reception room of his living quarters, though some small fighting continued until 7:00 a.m. Twenty-one American military personnel and civilians died during the attack.

[2] On a few occasions there he was allowed to write to his wife, Annabel,[2] who later sponsored and christened the cruiser USS Guam in 1944.

They reported that he supposedly seemed "chipper" and expressed his wish that President Franklin Roosevelt know that Guam had been "valiantly" defended.

[15] On October 23, 1912, McMillin married Annabel Parlett in Annapolis, Maryland, at the home of the bride's parents.

McMillin and his family lived in places including Long Beach, California, and Guam.