a market-town in Banffshire, 20 miles W. of Banff, situated on the Isla, and consisting of three villages, Old Keith, New Keith, and Fife Keith, all surrounded by hills. Old Keith is very ancient, irregularly built, and mean in appearance; New Keith contains a market-place, a parish church, an Episcopal and a Roman Catholic chapel, and meeting-houses for other denominations, a court-house, several branch banks, libraries, and schools. Fife Keith, connected with Old Keith by two bridges, is a finely built village, and dates from 1816. The inhabitants are engaged in weaving and bleaching, and also in manufacturing woollens, linens, and tobacco. Before the introduction of railways Keith was the chief starting point for cattle-dealers going to the south. At Old Keith the forces of the Pretender, in 1745, gained an advantage over the Royalists. In the neighbourhood Ferguson the mechanical philosopher was born. Markets weekly. Pop. (1851) 2101.