Woodbine was an Ontario provincial electoral district that existed from 1926 to 1967. It covered a section of the eastern city of Toronto east of Jones Avenue and west of Woodbine Avenue. In 1966 there was a major redrawing of the riding boundaries in Toronto and the riding was split. The portion east of Greenwood Avenue was merged into the Beaches—Woodbine and the portion west went into the Riverdale riding.

Riverdale was a provincial riding in Ontario, Canada that existed from 1914 to 1999. It occupied an area east of the Don River from the city limits just north of Danforth Avenue south to Lake Ontario. It was named after the neighbourhood of Riverdale. In 1999 a major reduction in Ontario seats resulted in Riverdale being merged with part of East York into a larger riding called Broadview-Greenwood.