William Harold Leonard Walker[1] (born c. 1966) is a politician in Ontario, Canada.

He was a Progressive Conservative member of the Legislative Assembly of Ontario who represented the riding of Bruce—Grey—Owen Sound between 2011 and 2022.

[3] Walker ran in the 2011 provincial election as the Progressive Conservative candidate in the riding of Bruce—Grey—Owen Sound.

[4] He was re-elected in the 2014 provincial election defeating Liberal candidate Ellen Anderson by 8,773 votes.

[2][5] He served as the party's critic for Community and Social Services.