Nicholas Kerdiffe (died 1609) was an Irish barrister and Law Officer of the early seventeenth century.
Sir John Kerdyffe, possibly an ancestor of Nicholas, was a Crown tenant in the liberty of Meath in 1451.
Hart suggests that as Law Officer he was completely overshadowed by the Attorney General, Sir John Davis, one of the most formidable political figures in early seventeenth-century Ireland.
[1] In 1604/5 he was one of several commissioners appointed to inquire into the title to land forfeited during the rebellions of the previous reign.
James Barry's third wife, Eleanor Kerdiffe of Dunsink, was almost certainly a relative, and possibly a sister, of Nicholas.