The Warden, published in 1855, is the first book in Anthony Trollope's Chronicles of Barsetshire series of six novels. It was his fourth novel.The Warden concerns Mr Septimus Harding, the meek, elderly warden of Hiram's Hospital and precentor of Barchester Cathedral, in the fictional county of Barsetshire.Hiram's Hospital is an almshouse supported by a medieval charitable bequest to the Diocese of Barchester.

The income maintains the almshouse itself, supports its twelve bedesmen, and, in addition, provides a comfortable abode and living for its warden. Mr Harding was appointed to this position through the patronage of his old friend the Bishop of Barchester, who is also the father of Archdeacon Grantly to whom Harding's older daughter, Susan, is married.

The warden, who lives with his remaining child, an unmarried younger daughter Eleanor, performs his duties conscientiously. The story concerns the impact upon Harding and his circle when a zealous young reformer, John Bold, launches a campaign to expose the disparity in the apportionment of the charity's income between its object, the bedesmen, and its officer, Mr Harding.