Tantallon (pronounced 'tan-TAL-en') is a community that extends from about two kilometers south of Trunk 3, along Route 333, just north of Ballfield Road, for roughly three kilometers along highway 333, to just south of Longards road, and includes Whynachts Point and Sheeps Head Island, within the Halifax Regional Municipality, Nova Scotia, Canada. It is bordered to the north by Upper Tantallon and to the south by Glen Haven.
On June 13, 2008, a forest fire broke out causing minor damage to two homes and 130 acres burned. The fire was believed to have been caused by a camp fire. The Royal Canadian Mounted Police laid no charges, however, it was determined that remnant fallen debris of Hurricane Juan fueled the fire.