Sir John de Norwich (died 1362), was a 14th century English knight and administrator who served as Admiral of the Fleet from the Thames northwards (1336), lieutenant of the Seneschal of Gascony (1338), summoned to parliament in 1342, and fought during the Second War of Scottish Independence and Hundred Years' War in Gascony and France.
After succeeding his father, he was granted a royal license in 1334 for a weekly market and annual fair at Great Massingham.
Norwich was summoned to parliament in 1342, and in 1343 was given a licence to crenellate his manor houses at Mettingham, Suffolk and also Blackworth and Lyng in Norfolk.
The holder of his manor of Benhall, near Saxmundham, had died without heirs, and on his wife's death the estate would in the ordinary course escheat to Norwich, as lord of the fee.
King Edward III of England, however had granted it to Robert d'Ufford, Earl of Suffolk, Norwich's sister's Margaret husband.