Rowland Winn, 1st Baron St Oswald[1] (19 February 1820 – 19 January 1893) was an English industrialist and Conservative Party politician.
He was instrumental in promoting and developing the ironstone ore fields in North Lincolnshire leading to the establishment of Scunthorpe as a national iron production center, and a key promoter of the Trent, Ancholme and Grimsby Railway.