Old Field is a village located in the Town of Brookhaven in Suffolk County, on Long Island, in New York, United States.

[5] The lighthouse and adjacent Keeper's Cottage serve as the Old Field Village Hall complex.

[7] The tidal estuary Flax Pond is located along the northern shore of the village.

10.5% of all households were made up of individuals, and 4.8% had someone living alone who was 65 years of age or older.

The current mayor of Old Field is Tom Gulbransen, the Deputy Mayor is William Schaefer, and the Village Trustees are Rebecca Van Der Bogart, Morgan Morrison and Hannah Smith.