Oakfield is a census-designated place and the primary village in the town of Oakfield, Aroostook County, Maine, United States. It is in the northwestern corner of the town, on both sides of the East Branch Mattawamkeag River. Interstate 95 passes through the CDP, north of the village center, with access from Exit 286. I-95 leads east 18 miles to the Canada–United States border at Houlton, and southwest 101 miles to Bangor. Oakfield was first listed as a CDP prior to the 2020 census.