Fraa Jesry is a character in the Neal Stephenson novel Anathem.
Fraa Jesry is an avout in the decenarian math of the Concent of Saunt Edhar.
Jesry, along with Arsibalt, Erasmas, and Lio comprise the team which has to physically move a capstan to wind the Great Clock each day during Provener for the seven years prior to the start of the novel.
The scion of a rich burger family from the city surrounding his concent, Jesry is brilliant and charismatic, yet eccentric and occasionally difficult.