Barneveld is a village located within the Town of Trenton in Oneida County, New York, United States. The population was 332 at the 2000 census. The village name is derived from the name of the Dutch statesman Johan van Oldenbarnevelt (1547–1619).
The Village of Barneveld is in the eastern part of the town on NY 365.
The current Mayor is George Morey, who took office in April 2009. The previous mayor was Brian Roczen.