Signal Hill, Military museum and national historic site in St. John's, Canada.

Signal Hill is a hill on the north side of the Narrows, the entrance to St. John's harbour, rising to Ladies' Lookout at 167 m. Cabot Tower, a square stone tower with a flagmast, stands at the top; the summit also holds the restored Queen's Battery Barracks and a visitor centre. Trails such as North Head and the Burma Road cross the scrub-covered slopes.

The Battle of Signal Hill in 1762 was the final military engagement of the Seven Years' War in North America, fought between British and French forces. This conflict solidified British control over the region for centuries to come.

The Signal Hill Tattoo is a summer military performance featuring reenactors in the uniforms of the Royal Newfoundland Regiment of Foot of 1812, the Royal Newfoundland Regiment Band of 1795, and the Royal Newfoundland Regiment of 1917. Each section demonstrates drills and battle tactics of its period, and the artillery fires cannons.

The visitor centre opens during the tourist season and holds interactive exhibits, a film on the site's military and communications history, and a cafe. Trails include the North Head Trail along the harbour edge and the steep Lady's Lookout Trail down to Burma Road, built by American servicemen in the Second World War.

The signal Marconi received on 12 December 1901 arrived in Morse code from his Poldhu station in Cornwall, England, and was picked up in an abandoned fever and diphtheria hospital on the hill. That building later burned down, so nothing of the receiving station survives on the summit.