Turkey Street is a London Overground station on the Southbury Loop section of the Lea Valley lines, located in the Bullsmoor area to the north of Enfield in north London. It is 12 miles 16 chains (19.6 km) down the line from London Liverpool Street and is situated between Southbury and Theobalds Grove.

The Southbury Loop is a line linking Edmonton Green, in north-east London, with Cheshunt. It was opened by the Great Eastern Railway in 1891. Initially, it was not very successful and was closed to passenger traffic in 1909. Goods trains continued to use the line and during World War I passenger services were reinstated for munitions workers. Once the war finished the line returned to its goods-only status although it was occasionally used for diversionary purposes when the West Anglia Main Line was closed south of Cheshunt. Electrification of the line and the reintroduction of passenger services in 1960 saw the line become busy with regular suburban services as part of the Lea Valley Lines network. Since May 2015 passenger services on the line have been part of London Overground.