John William Kilbreth (February 18, 1876 - July 24, 1958) was an American brigadier general who served during World War I. He received the Army Distinguished Service Medal for his accomplishments as Director of the Department of Firing, School of Fire for Field Artillery, Fort Sill, Oklahoma.
Kilbreth graduated from Harvard in 1898 with an A. B. degree.
Kilbreth was commissioned as a second lieutenant in the Fourth Artillery on September 9, 1898. He served in the Philippines from 1899 to 1901.
Kilbreth attended the artillery school in 1902.
When the United States entered World War I, Kilbreth was stationed at Schofield Barracks, Hawaii with the 9th Artillery.
Kilbreth retired from the Army in 1922.
On December 15, 1922, Kilbreth married Mrs. J. Stevens Ullman. He later married Mrs. Gertrude O. Barclay.
Kilbreth served as vestryman of St. Thomas Church in New York.