Burstow is a village and civil parish in the Tandridge district of Surrey, England. Its largest settlement is Smallfield. Smallfield is 2.5 miles (4.0 km) ENE of Gatwick Airport and the M23 motorway, 7.5 miles (12.1 km) southwest of Oxted and 1.8 miles (2.9 km) east of Horley. Crawley is a nearby large commercial town, 3.7 miles (6.0 km) southwest of Burstow and 5 miles (8.0 km) southwest of Smallfield. Towards the outside of the London commuter belt, some residents commute to the capital by road or rail from here as London is 24.5 miles (39.4 km) to the north or Horley railway station is accessible.