OSWALDTWISTLE, an urban district in the Accrington parliamentary division of Lancashire, England, on the Leeds and Liverpool Canal, 312 m. E.S.E. of Blackburn. Pop. (1901) 14,192. It possesses cotton-mills, print works, bleach works and chemical works, and in the neighbourhood are collieries, stone quarries and potteries. At Peelfold, in the township, was born (1750) Sir Robert Peel, first baronet, who, as a factory-owner effected wide developments in the cotton industry.