REUTLINGEN, a town of Wurtemberg, capital of the Reutlingen circle of Schwarzwald, at the foot of the Swabian Alp, on the Echatz, the water of which flows through the town, 6 miles E. of Tübingen, and 20 S. of Stuttgart. It is a stately old town, walled and moated, in an exquisitely beautiful position, with the long line of steep hills, the dark, dense pine forests, green meadows, and rich, waving fields of corn, all combining to enhance the picturesqueness of the scenery, a fine view of which is obtained from the lofty isolated hill Achalm, close at hand. The Protestant church of St Mary is considered the finest ecclesiastical building in Wurtemberg; it is of elegant proportions, and contains some curious ancient ornaments. A large, handsome town-hall, and a Franciscan convent, now occupied by government offices, are among the other edifices of the town. There are here too several schools and a public library; manufactures of woollen cloth, cotton, leather, hats, &c.; and a considerable trade in these, as well as in the produce of the country. Reutlingen formerly belonged to the counts of Achalm, the ruins of whose castle, on the hill of that name, are still to be seen. Pop. (1855) 12,367.