Isaac Haim Bitton, sometimes Bittoon, (29 June 1779 – 27 January 1839) was a Dutch Jewish bare-knuckle boxer who is most notable for a fight with George Maddox that lasted 74 rounds.

On 31 July 1801, in an historic victory, Bitton defeated Paddington Tom Jones, a skilled and well known boxer of the period, at Wimbledon Common.

[6] Though Maddox's face looked like raw meat by the end of the match, the battle was deemed a draw, as it was stopped by darkness after 1 hour 10 minutes, and representatives determined both men had performed with equal skill.

[2][6] On Willesden Green on 15 July 1804 for 50 guineas, Bitton fought another match, technically a draw, with William Wood, a London coachman, who stood 5' 11" (1.8 m) in height.

[6] The fight was interrupted after fifty-six minutes in the thirty-sixth round by the appearance of officers from Bow Street, as boxing was illegal in London at the time.

[8] On 21 August 1807, he acted as bottle holder along with his friend Daniel Mendoza as second for the Jewish boxer Dutch Sam in his fight with English great Tom Belcher.

The school also included fencing featuring both "singlestick" which used a cudgel or wooden sword for training, and broadsword, which used a two edged weapon used for cutting.