Major-General George Carmichael-Smyth (1803–1890), was a British commanding officer of the 3rd Bengal Light Cavalry. In April 1857 he punished 85 of his men when they refused to use the cartridges of the Enfield rifle which had recently been issued. In response the Native regiments rebelled. An account of the incident was written in an unsent letter by John MacNabb, a Cornet in the Cavalry.