Robert Walpole, 1st Earl of Orford, KG, PC (26 August 1676 – 18 March 1745), known between 1725 and 1742 as Sir Robert Walpole, was a British politician who is generally regarded as the de facto first Prime Minister of Great Britain.

Robert Walpole (3 May 1736 – 19 April 1810), from 1756 styled The Hon. Robert Walpole, was the fourth son of the 1st Baron Walpole, the younger brother of Robert Walpole, the Prime Minister. He served as an extra clerk of the Privy Council from 1749 until 1764, when he replaced Henry Fane as one of the Clerks in Ordinary. After serving as secretary of the British embassy in Paris, he was envoy extraordinary and minister plenipotentiary to Portugal from 1771 to 1800. One of his sons was Major-General George Walpole (1758–1835), under-secretary for foreign affairs in 1806.

Lieutenant-General Sir Robert Walpole KCB (1 December 1808 – 12 July 1876) was a British Army officer.

Colonel Robert Walpole (18 November 1650 – 18 November 1700) was an English Whig politician and soldier who represented the borough of Castle Rising from 1689 to 1700 in the House of Commons of England. Because he held the rank of Colonel in the militia, he was widely known as Colonel Walpole. He is mainly notable for being the father of Sir Robert Walpole. His son, who served during the reigns of George I and George II, is considered to have been the first Prime Minister of Great Britain. He is also known as the Guinness World Records titular for having the world's longest overdue book.