Sydenham (commonly referred to as Sydenham Ward) is a neighbourhood located in downtown Kingston, Ontario, Canada. The Sydenham district for census purposes is bounded by Lake Ontario to the south and east, by Princess Street to the north and Barrie Street to the west. These boundaries do not coincide with the Sydenham Ward boundaries for city councillor elections as they include parts of the downtown main street. The neighbourhood is home to Empire Life Financial's Canadian Headquarters at King & Johnson Streets and is one of Kingston's largest employers with 550 full-time employees.