Grantchester Grind is a novel written by Tom Sharpe, a British novelist born in 1923 who was educated at Lancing College and then at Pembroke College, Cambridge.

Grantchester Grind follows on the story of a fictitious Cambridge college, started in the previous book, Porterhouse Blues , a college whose funds were exhausted by a previous bursar with a tendency to gamble. One of the story's central themes, therefore, is guided by the Senior Members' attempts to acquire funds for the college, after an incident involving a bedder and an undergraduate caused the Bull Tower to be severely damaged.

The new Master, Skullion, the previous Head Porter of the college, is frail after a stroke and the issues surrounding the death of the previous Master, Sir Godber Evans, prompt his widow to instigate a plan to investigate the death through a planted Fellow, backed by a large, anonymous donation to the College. Meanwhile, the Dean of the College takes it upon himself to visit prosperous Old Porterthusians (previous members of Porterhouse) in the hope that one is willing and able to become Master if and when Skullion cannot continue. Meanwhile, the current Bursar is contacted by an American media mogul who seems to be interested in supporting the college without clarifying what it is he wants in return.