Giant Falls is a 350-foot waterfall on Peabody Brook in Coos County, New Hampshire, in the Northeastern Highlands region. It lies about 4.5 miles northeast of Gorham and roughly 68.1 miles northwest of Portland as the crow flies.
At 350 feet it is among the ten tallest of the 115 New Hampshire waterfalls with a recorded height, ranking 9th. The tallest single drop is 150 feet. By form it is a tiered waterfall, falling in several distinct steps one after another.
The Northeastern Highlands are the mountains of northern New England and the Adirondacks, with spruce-fir on the summits and northern hardwood forest of maple, beech and birch below, and countless lakes and boulder-strewn brooks. Fast mountain streams drop over granite and gneiss ledges in chains of falls and pools.
Coos County holds 79 recorded waterfalls, and several are close by. Leadmine Brook Falls, a horsetail waterfall, is about 1.1 miles away. Dryad Fall, a 325-foot tiered waterfall, is about 1.6 miles away. Austin Brook Falls, a tiered waterfall, is about 2.3 miles away.
Giant Falls is located at 44.4323° N, 71.1076° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The creek name is confirmed against the federal Geographic Names Information System. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this waterfall yet.