John Martin (1692–1767) was a British banker and politician who sat in the House of Commons from 1741 to 1747. Martin was the third son of William Martin of Evesham, Worcestershire and his wife Elizabeth Knight, daughter of John Knight of Barrells, Warwickshire and was baptised on 8 July 1692. He bought Overbury Court in 1723 from the Parsons family and rebuilt the Elizabethan manor house in the Georgian style in 1740 after a disastrous fire. He married firstly Catherine Jackson, daughter of Joseph Jackson of Sneyd Park, Gloucestershire before 1724.