John Duncan Bulkeley (19 August 1911 – 6 April 1996) was a vice admiral in the United States Navy and was one of its most decorated naval officers.

On 11 March 1942, he picked up General Douglas MacArthur, his family, and his immediate staff, who had been ordered to flee the Philippines, and took them aboard PT 41 and other 77-foot (23 m) motor torpedo boats through over 600 nautical miles (1,000 km) of open ocean.

In September 1942, while back in the United States helping to raise War Bonds as a lieutenant commander, he met former Ambassador to Britain Joseph Kennedy at New York's Plaza Hotel, and shortly after was instrumental in recruiting Lieutenant John F. Kennedy into the Navy's Motor Torpedo Boat Training Center (MTBTC) at Mellville, Rhode Island.

Having lost none of his wartime daring, Bulkeley was known to test the alertness of the Marines guarding the base by donning a ninja suit, blackening his face and endeavoring to penetrate the classified area after dark without detection.

Ever popular with his men, who both respected and admired him, Bulkeley could be seen driving around the base in his fire-engine red Triumph TR3 sports car with a large silver PT boat as a hood ornament.

[7] Promoted to rear admiral by President John F. Kennedy, who commanded PT-109 during World War II, Bulkeley was dispatched to command the Guantanamo Bay Naval Base in Cuba,[2] where he met Cuba's threat to sever water supplies in response to the Bay of Pigs invasion and other assaults by ordering the installation of desalinization equipment to make the base self-sufficient.

The remarkable achievement of LCDR Bulkeley's command in damaging or destroying a notable number of Japanese enemy planes, surface combatant and merchant ships, and in dispersing landing parties and land-based enemy forces during the 4 months and 8 days of operation without benefit of repairs, overhaul, or maintenance facilities for his squadron, is believed to be without precedent in this type of warfare.

His dynamic forcefulness and daring in offensive action, his brilliantly planned and skillfully executed attacks, supplemented by a unique resourcefulness and ingenuity, characterize him as an outstanding leader of men and a gallant and intrepid seaman.

Bulkeley's version of PT-boat heroics in defending the Philippines from Japanese invasion in 1941-1942 was the subject of the laudatory fictionalized novel "They Were Expendable" by William Lindsay White in 1942.

Three years later John Ford directed a film version of the book, They Were Expendable, starring John Wayne and Robert Montgomery, who portrayed motor torpedo boat squadron commander LT Brickley, based on Bulkeley's early experiences commanding Motor Torpedo Boat Squadron Three (MTBRON3) in the Philippines.