Ninfield is a village and civil parish in the Wealden District of East Sussex, England. The village is quite linear and centred 4 miles (6.4 km) north of Bexhill-on-Sea where two roads cross: the A269 from Bexhill to Battle and the A271 to Hailsham. The parish covers 2,500 acres (1,010 ha); approximately the northern half of which is in the High Weald AONB.
To the west of the village is Standard Hill, said to be the place that William the Conqueror placed his flag after the Battle of Hastings. As with many other Wealden villages, it was involved in the iron industry: that fact is commemorated by the presence in the village of a set of iron stocks. Smuggling was also rife in the eighteenth century.