Gray is a town in Cumberland County, Maine, United States. The population was 6,820 at the 2000 census. It is part of the Portland–South Portland–Biddeford, Maine Metropolitan Statistical Area. Gray is home to regional headquarters for the Maine Department of Inland Fisheries and Wildlife, which maintains a fish hatchery and wildlife park. It is also home to an NOAA National Weather Service Forecast Office, which issues forecasts and severe weather warnings for New Hampshire and Maine.