Sandwich is a town in Carroll County, New Hampshire, United States. The population was 1,326 at the 2010 census. Sandwich includes the villages of Center Sandwich and North Sandwich. Part of the White Mountain National Forest is in the north, and part of Squam Lake is in the southwestern corner of the town.
Chartered in 1763 by Colonial Governor Benning Wentworth, the land was considered so inaccessible that the grant was enlarged, making Sandwich one of the largest towns in the state. It was named in honor of John Montagu, 4th Earl of Sandwich, said to be the inventor of the sandwich.
The earliest European settlers arrived in 1767. By 1830 Sandwich had grown to a population of 2700, roughly double the current (2010) population. At that time the town contained farms, stores, mills, churches, schools, carpenters, blacksmiths, and wheelwrights.
By the end of the 1800s much of the population had left Sandwich to live in cities to the west. Sandwich began to be an attraction for visitors, summer residents and artists, which continues to this day.
The League of New Hampshire Craftsmen began in Sandwich as "Sandwich Home Industries" in 1920, and continues statewide today. Each fall the town hosts the Sandwich Fair. The Durgin Bridge, built in 1864, is a covered bridge in the eastern section of town.