Darlington, city (1991 pop. 85,519) and borough, NE England, on the Skerne River near its junction with the Tees River. Darlington is a railroad center, with extensive locomotive works, iron foundries, and heavy and construction engineering. The locomotive that drew the first passenger train (1825), on the Stockton and Darlington Railway, is preserved at the Darlington Railway Center and Museum. St. Cuthbert's Collegiate Church (12th cent.) is there. Educational institutions include Queen Elizabeth College, the College of Technology, and the School of Art.