Dudley North, 4th Baron North, KB (1602 - 24 June 1677) of Kirtling Tower, Cambridgeshire was an English politician, who sat in the House of Commons at various times between 1628 and 1660.
North married Anne Montagu, daughter of Sir Charles Montagu of Boughton House and his wife Mary Whitmore, and brother of Henry Montagu, 1st Earl of Manchester, so increasing the family fortune. They had 14 children. His eldest son, Charles (c. 1636–1691), was created Baron Grey of Rolleston during his father's life, and succeeded his father as 5th Baron North. His third son, Francis North, became Lord Chancellor as Lord Guilford. His fourth son was Sir Dudley North, the economist. His fifth son was John North (1645–1683), master of Trinity College, Cambridge, and professor of Greek in the university. His sixth son was Roger North, the lawyer and historian. One of his daughters, Mary, married Sir William Spring MP, and the other, Jane Bridget, married William Henry Moss. His granddaughter Dudleya North was an orientalist, linguist and classical scholar.