Newsday is a daily American (United States) newspaper that primarily serves Nassau (Nassau County, New York) and Suffolk (Suffolk County, New York) counties and the New York City borough (borough (New York City)) of Queens on Long Island, although it is sold throughout the New York metropolitan area. As of 2009, its weekday circulation of 377,500 was the 11th-highest in the United States (Newspapers in the United States), and the highest among suburban newspapers.

The newspapers headquarters are in Melville, New York, in Suffolk county.