John L. Parker is a politician in Ontario, Canada. He was a Progressive Conservative member of the Legislative Assembly of Ontario for York East from 1995 to 1999. From 2006 to 2014 he was a Toronto city councillor for Ward 26, which includes the neighbourhoods of Leaside and Flemingdon Park. From 2010 to 2014 he was appointed as Deputy Speaker.

Leaside (/'liːˌsaɪd/) is a neighbourhood in Toronto, Ontario, Canada. It is located northeast of Downtown Toronto, in the vicinity of Eglinton Avenue East and Bayview Avenue. The area takes its name from William Lea and the Lea family, who settled there in the early years of the 19th century. The area first developed as farmland along with Toronto through the 19th century. It was incorporated as a town in 1913. In 1967, it amalgamated with the township of East York to form the borough of East York. In 1998, it became part of the city of Toronto. It is one of the most expensive and exclusive neighbourhoods in the city.