Friern Barnet /ˌfraɪərn ˈbɑːrnᵻt/ is a suburban area within the London Borough of Barnet, 7.4 miles (11.9 km) north of Charing Cross. Its centre is formed by the busy intersection of Colney Hatch Lane (running north and south), Woodhouse Road (taking westbound traffic towards North Finchley) and Friern Barnet Road (leading east towards New Southgate).
Friern Barnet was an ancient parish in the Finsbury division of Ossulstone hundred, in the county of Middlesex.
The area was originally considered to be part of Barnet, most of which was in Hertfordshire. By the 13th century the Middlesex section of Barnet was known as Little Barnet, before becoming Frerenbarnet and then Friern Barnet (sometimes spelt in other ways, such as "Fryern Barnett"). The "Friern" part of the parish's name derives from the French for "brother" and refers to the medieval lordship of the Brotherhood or Knights of the Hospital of St John of Jerusalem.
Friern Barnet was mainly rural until the 19th century. The opening of Colney Hatch paupers' lunatic asylum in 1851, and of railway stations on the Great Northern and Metropolitan Railways, also in the mid-19th century, prompted its development as an outer London suburb. This process was accelerated by the arrival of electric trams in the 1900s.