John Lynch Esq of The Groves at Staple, Kent (d. 1733) and his wife, Hon.
He was educated at the King's School, Canterbury, and then St John's College, Cambridge, (1714; BA 1718; MA 1721; DD 1728).
In 1723 his patron, Archbishop William Wake, appointed Lynch to the Chapter of Canterbury Cathedral (Stall IV) and as rector of All Hallows, Bread Street, London.
An anonymous satirical pamphlet (The Life of Dean L---nch, 1748) was published attacking him.
Todd in his Some account of the deans of Canterbury (1793) comments: "Large as his Income may appear, yet his expenses were equal to his revenues.