Bartholomew de Burghersh, 1st Baron Burghersh (died 3 August 1355, Dover), English nobleman and soldier, was a younger son of Robert de Burghersh, 1st Baron Burghersh and Maud de Badlesmere, sister of Bartholomew de Badlesmere, 1st Baron Badlesmere.
He was the second (or perhaps the third) son of Robert de Burghersh, 1st Baron Burghersh, and succeeded to his father's title and estates on the death of his elder brother Stephen. He was the nephew on his mother’s side and namesake of Bartholomew, lord Badlesmere, one of the most powerful of the barons. He married Elizabeth, one of the three coheiresses of Theobald de Verdun, 2nd Baron Verdon and his first wife Maud Mortimer (c.1289-18 September 1312), an alliance by which Burghersh increased his wealth and power.
Lord Badlesmere was a bitter enemy of Thomas, Earl of Lancaster, and Burghersh can be found taking an active 1316; in the unhappy contests of parties in Edward II’s reign as an adherent of his uncle, whom in 1317 he accompanied in an expedition to Scotland. In October 1321, when Leeds Castle, Kent-the gates of which had been shut against Queen Isabella by Lady Badlesmere – surrendered to Edward, who had with unwonted spirit raised a force of thirty thousand men to avenge the insult offered to his wife, Burghersh, who was one of the garrison, was taken prisoner and incarcerated in the Tower of London. This imprisonment was probably the means of saving him from the fate of his uncle after the disastrous battle of Boroughbridge.
He was spared to aid in the overthrow of his unfortunate sovereign. On the landing of Isabella, on 24 September 1326, his brother Henry Burghersh, the bishop of Lincoln, hastened to join her, and with Orlton, bishop of Hereford, took the initiative in the measures which speedily led to Edward's deposition and murder.
The important posts of constable of Dover Castle and warden of the Cinque Ports, which had been held by his father, were given to Burghersh, and he held both offices, with but slight intermission, to his death. In the unsettled relations between England and France, which lasted through the greater part of Edward IlI's reign, the responsibility devolving on the holder of these offices, which implied the command of the chief channel of communication between the two countries, was of the highest moment, and it evidences the confidence reposed in Burghersh that he should have held them almost continuously during so important an epoch.