General Sir Crawford Trotter Chamberlain GCIE CSI (1821–1902) was a senior officer in the Indian Staff Corps.

In September 1841 he was appointed to the command of the 5th Janbaz cavalry, and in the following month, he became adjutant of Christie's horse.

He was awarded the clasp, was mentioned in despatches, and, being promoted to captain and brevet major in November 1849, was given the command of the 1st irregular cavalry, formerly Skinner's Horse.

[1] On the outbreak of the Indian Rebellion, Chamberlain's men volunteered to shoot condemned rebels at Jullundur (4 June 1857).

At Chichawatni (September) Chamberlain was attacked by a superior force of the enemy, and housed his cavalry in a caravanserai.

to the governor-general, and two years later was made Companion of the Order of the Star of India (CSI), and was included in the first list of twelve officers for good service pension.

During his unemployed time as major-general he served on various commissions and courts of inquiry, and from 1874 to 1879 he commanded the Oudh division.

In 1897, on the occasion of Queen Victoria's diamond jubilee, he was made Knight Grand Commander of the Order of the Indian Empire (GCIE).