The Kingsway is an affluent residential neighbourhood of Toronto, Ontario, Canada. It is bounded by Bloor Street to the south, Dundas Street to the north, Mimico Creek to the west and the Humber River to the east. While the area was first known as "Kingsway Park", popular usage drifted to "The Kingsway", that being the name of the main road which winds through the heart of the area.

The area now known as 'The Kingsway' is a combination of three distinct areas:

The first area to be built on was south of Government Road, east of Prince Edward Drive which formed the government 'King's' Mill Reserve; a large forested area with the 'Old Mill' at the centre, on Bloor beside the Humber River. This part of the modern Kingsway, now centred on the street 'The Kingsway', was the least developed area until the neighbourhood was subdivided; it is now the most exclusive (and leafy) part of the Kingsway as well as its namesake; the street 'the Kingsway' beginning at gates beside the Old King's Mill

Along Dundas from the Humber River to Royal York was the Etobicoke side of York Township's community of Lambton Mills. With a second mill on the western (Etobicoke) side, this area was the first to develop but is today the least affluent part of the Kingsway.

South of Bloor, west of Prince Edward Drive formed a typical farming community dominated by the Thompson family; sometimes called 'Thompson Estates' by local developers. Today this community is only slightly less affluent than the former Kingsmill, although picturesque along the Mimico Creek which winds through the former Thompson farms. One of the two Thompson homes, Spring Bank Cottage', survives facing Royal York at the top of the hill overlooking Mimico Creek.

The neighbourhood was first developed by Etobicoke lawyer Robert Home Smith who purchased the old King's Mill (which was renamed the Old Mill, reopening as a high-end Inn) and began developing land in the early 1900s.

The Kingsway emerged from Home Smith's vision of the ideal community and was mostly inspired by the Garden City principles, which were originally conceived in parts of England and the United States during the late 19th and early 20th centuries. Indeed, Smith was a big fan of everything English, and this inclination instructed his ideas for the neighbourhood. By the 1920s, those ideas culminated into the development, which he named Kingsway Park.

"Tastefully appointed" traditional homes were sited on well-treed and winding streets, to create an air of a wooded retreat. Home Smith also decreed that no owner could build a house without the approval of his staff, and he developed strict regulations against the cutting of trees. Most of the homes were designed in the Arts and crafts style, which had become popular during that time. Smith insisted on the use of locally sourced materials for the houses in Kingsway Park, such as sandstone quarried from around the Humber River and Credit River areas.

Kingsway Park was aimed at affluent home buyers. Street names such as Queen Anne Road and Kingsgarden Road emphasized the appearance of English respectability and affluence that Smith was selling. Smith also created the Old Mill Restaurant in the community, whose Tudor Revival facade and well-appointed interior inspired much of the English design in the Kingsway.

Despite its well-intentioned approach to traditionalism, the Kingsway was a neighbourhood built for the automobile, and all houses were built with discreetly placed garages, as per Smith's wishes.

In the 1950s a series of accidents led to the creation of a highway style interchange at Royal York and Dundas, cutting the neighourhood from the much older community of Islington to the west and the street 'The Kingsway' from its extension to the north. Consequently the neighbourhood along the Kingsway north of Dundas developed in a radically different way than that to the south had done. The stretch of Bloor east of Prince Edward Drive near the entrance to the street 'the Kingsway' and the Old Mill saw the construction of many apartment buildings in this period.

The community in the Kingsway has been very successful in preserving the style of housing and atmosphere of the neighbourhood as intended by Robert Home Smith; the area contains many of Etobicoke's most prestigious addresses. Local residents are also very involved in questions of development and maintenance such as the preservation of 'the Kingsway' theatre.