HENDON, a borough (since 1932) of Middlesex, England, on the river Brent, 8 m. N.W. of St. Paul's cathedral, London. Pop. (1931) 115,682. The church of St. Mary is mainly Perpendicular, and contains a Norman font. To the north of the village, now a residential suburb of the metropolis, is Mill Hill, with a Roman Catholic Missionary college, opened in 1871, and a public school founded by Nonconformists in 1807. The manor belonged at an early date to the abbot of Westminster.