William McEntyre Dye (January 26, 1831 – November 13, 1899) was a soldier from the United States who served in military capacities around the world.

Dye led the brigade at the battle of Prairie Grove where his division was under the overall command of Brig.

[3] The following year, Dye returned to command of his regiment and was part of Herron's division of reinforcements sent to aid the Union army besieging Vicksburg.

[2] His last service in the volunteer army was as the Exchange Agent for POWs in the Military Division of West Mississippi.

In 1873 Dye travelled to Egypt to become one of several Union and Confederate veterans who offered their service to the Khedive.

[5] At the battle of Gura Dye was wounded in the foot and later was court martialed for hitting another Egyptian officer.

Dye would write a book about his experience in the Egyptian Army, titled Moslem Egypt and Christian Abyssinia; Or, Military Service Under the Khedive, in his Provinces and Beyond their Borders, as Experienced by the American Staff.

In 1888, General Philip H. Sheridan recommended Dye for the position as Chief Military Adviser to the Korean Government under King Gojong.