Old field may refer to:
Old field, a term used by ecologists to describe early succession lands previously cultivated but later abandoned.
Indian old field, a term used in Colonial American times into the early 19th Century by white explorers, surveyors, cartographers and settlers. It is used to describe lands formerly cleared and utilized by Native Americans for farming and occupation.
Old Field, a village in Suffolk County, New York, USA.
Old Fields, an unincorporated community in northern Hardy County, West Virginia, USA.
Ocmulgee Old Fields, along the Ocmulgee River in Georgia, USA.
Indian Old Fields, originally Eskippathiki, last Native American town in Kentucky, USA.
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Cropland that is no longer used to produce an agricultural crop and that has been allowed to revert to natural plant cover.