The Cannon Balls is a mountain ridge located in Grafton County, New Hampshire.

The ridge has three peaks with elevations of, from west to east, 3,693, 3,660, and 3,769 feet (1,125, 1,115 and 1,148 meters).

The ridge takes its name from adjacent Cannon Mountain, on which a series of boulders, when viewed from the foot of the mountain, resemble an antique artillery cannon.

The south side of the ridge drains into Cascade Brook, thence into the Pemigewasset River, the Merrimack River, and into the Gulf of Maine in Massachusetts.

The Appalachian Trail, a 2,170-mile (3,490 km) National Scenic Trail from Georgia to Maine, runs across the southern base of the Cannon Balls between North Kinsman and Franconia Notch.