HARROW ON THE HILL, a village in the county of Middlesex, 10 miles N.W. of London. Harrow owes its celebrity to its free grammar school, founded in 1571 by John Lyon, a wealthy yeoman of this parish. The primary object of this school was the gratuitous instruction of boys belonging to the parish of Harrow, but it is now principally attended by sons of the nobility and gentry, and is in high repute as an educational institution. Among the celebrated men who have been educated here may be mentioned Sir William Jones, Dr Parr, Richard Brinsley Sheridan, Lord Byron, and Sir Robert Peel. The number of scholars in 1853 was about 390. It has four exhibitions of 50 guineas each to either university, and two of the same value, founded by the late Mr Sayer, to Caius College, Cambridge. On the summit of the hill on which the village stands is the parish church, surmounted by a tower and spire. Pop. (1851) 4951.