Jameson Avenue is a multi-lane arterial road in the Parkdale neighbourhood in Toronto, Ontario, Canada. It is a north-south roadway from Lake Shore Boulevard to Queen Street. Originally laid out in the 19th century as two-lane residential street, its traffic and land use has changed considerably from a suburban/semi-rural street to a main arterial connecting to an expressway. The road is named for Robert Sympson Jameson, former Attorney General of Upper Canada.