Aldworth, Sir Richard (d. 1629), army officer, was second son of Richard Aldworth, verderer of Showwood forest, Oxfordshire. He served as a lieutenant in Ireland prior to 1603, was appointed provost-marshal of Munster for life (3 May 1610), with command of a troop of horse, and was knighted (22 April 1613). Following the death of the lord president of Munster, Donough O'Brien (qv), earl of Thomond, he was one of the commissioners for martial affairs for the province (appointed 19 September 1624), and among the commissioners for civil affairs named 21 April 1625. The incoming lord president, Sir Edward Villiers, named him vice-president 1 June 1625, and he was appointed to the Irish council in August 1625.
He was again one of the commissioners for civil and martial affairs in Munster (appointed 30 June 1626), in Villiers's absence, also being named ‘chief leader’ of the army in the province, appointments renewed on 15 September 1626 after the death of Villiers and continuing until the appointment of Sir William St Leger (qv) as president in 1627. Aldworth held a lease of land at Short Castle, Mallow, Co. Cork, as early as 1611, and from 1615 acquired property centred on Newmarket, Co. Cork. Here he promoted English settlement and urban growth. Aldworth married Ellen Poer. He died without issue 21 June 1629, his property passing to his nephew, also Sir Richard Aldworth.