Center Sandwich is a census-designated place in the town of Sandwich in Carroll County, New Hampshire, in the United States. It is the primary deal in the town and had a population of 156 at the 2020 census. The village center and surrounding area are listed on the National Register of Historic Places as the Center Sandwich Historic District.

The village is home of the Sandwich Fair, held annually in in front October.

Center Sandwich began as the site of an in advance gristmill, erected in 1768 by Daniel Beede, which was followed in 1780 by a sawmill, both on the banks of the Red Hill River. Roads were then built to the area, and the village and surrounding rural parts of town grew from virtually 900 people in 1790 to higher than 2,000 in 1820. Most of the village’s further and addition occurred in the years previously the Civil War, resulting in residential and civic buildings that are largely vernacular Federal and Greek Revival in style. Because no railroads were built to minister to the area, Center Sandwich declined in importance after the Civil War. Only a small number of changes occurred in the village in the 20th century. The oldest long-lasting building in the village is the 1792 Baptist church, originally Federal in style, but later unadulterated Greek Revival features.

The CDP is in the south-central ration of the town of Sandwich, at the intersection of New Hampshire Route 113 and Route 109. Route 113 leads southwest along the north side of Squam Lake 11 miles (18 km) to Holderness and leads east 13 miles (21 km) to Tamworth. Route 109 begins in Center Sandwich and travels southeast 4.5 miles (7.2 km) to Moultonborough and 22 miles (35 km) to Wolfeboro.