Robert Scawen (1602–1670) was an English politician who sat in the House of Commons at various times between 1640 and 1670. He supported the Parliamentary cause in the English Civil War. Scawen was the second son of Robert Scawen of Molinick, St. Germans, Cornwall and his wife Isabel Nicholl, daughter of Humphrey Nicoll of Penvose, St Tudy, Cornwall. He was baptised on 16 May 1602. Scawen married Catherine Alsopp, daughter of Cavendish Alsopp, merchant, of London and had seven sons and two daughters. Two of his sons, William and Thomas, were both to be MPs and Governors of the Bank of England.