Bristol is a town in Grafton County, New Hampshire, United States. The population was 3,244 at the 2020 census. It is home to Wellington State Park, Sugar Hill State Forest, and Profile Falls on the Smith River. Surrounded by hills and lakes, Bristol includes the lower two-thirds of Newfound Lake, a resort area.

Grafton County is a county in the U.S. state of New Hampshire. As of the 2020 census, the population was 91,118. Its county seat is the town of Haverhill. In 1972, the county courthouse and other offices were moved from Woodsville, a larger village within the town of Haverhill, to North Haverhill.