Renfrewshire (291), a south-western county of Scotland; faces the Firth of Clyde on the W., between Ayr on the S. and SW., and the river Clyde on the N.; bordered on the E. by Lanark; hilly on the W. and S., flat on the E.; is watered by the Gryfe, the Black Cart, and the White Cart; dairy-farming is carried on in extensive scale, stimulated by the proximity of Glasgow; nearly two-thirds of the county is under cultivation; coal and iron are mined, and in various parts the manufacture of thread, cotton, chemicals, shipbuilding, &c., is actively engaged in.