St. John's Harbour with Signal Hill beyond, Newfoundland, Canada

St. John's is the capital and largest city in Newfoundland and Labrador, in Eastern Canada. Located on the eastern tip of the Avalon Peninsula on the island of Newfoundland, the city covers 446.04 square kilometres (172.22 sq mi) and is North America's most easterly city, excluding those of Greenland Its name has been attributed to the feast day of John the Baptist, when John Cabot was believed to have sailed into the harbour in 1497, and also to a Basque fishing town with the same name. Existing on maps as early as 1519, it is considered by some to be the oldest English-founded city in North America.] The city was officially incorporated as a city in 1888.

With a metropolitan population of approximately 214,000 (as of July 1, 2015), the St. John's Metropolitan Area is Canada's 20th largest metropolitan area and the second largest Census Metropolitan Area (CMA) in Atlantic Canada after Halifax.

The city has a rich history, having played a role in the Seven Years' War, the French and Indian War, the American Revolutionary War and the War of 1812. Also, in St. John's,Guglielmo Marconi received the first transatlantic wireless signal. Its rich history and culture have made it one of the world's top ocean-side tourist destinations