William Pitt Morse (24 June 1889 – 20 December 1975) was a United States Army officer.

He graduated from the Command and General Staff School in 1928 and the Army War College in 1939.

[1] Promoted to captain, Morse was called to active federal service in August 1917.

[2] Sent to the Philippines in November 1941,[4] Morse received a temporary promotion to colonel after the outbreak of hostilities with Japan in December.

After surrendering to Japanese forces, Morse was interned with other senior U.S. Army officers on Formosa and in Manchukuo.