John de Blennerhassett (1350 - 1384) was an English politician and ancestor of the Blennerhassett family.[1]
John was the son of Alan de Blenerhayset. He held the office of Member of Parliament for Carlisle in the House of Commons of England in 1381 and 1384.[2] He was appointed to the office of Commissioner in 1384.
He married Joanna, and together they are recorded as having had two sons: Richard and Ralph.